what cars came with posi traction

This means that there will be greater traction in all environments, as both rear wheels are turning under power. Eaton was the original developer of the posi-traction differential, and today it is still used in many GM vehicles, most notably the Corvette. Save your pennies, buy a posi, and install it as soon as possible. Most heavy-duty Chevy trucks come standard with positraction rear ends, but light-duty trucks may not have this feature. They are costly pieces but in far better condition than what you will find anywhere else. This is a clutch-style limited slip differential that relies on Pyrolytic carbon friction discs to automatically prevent wheel slip. RAY: Normally, on a rear wheel drive car, the power is delivered to both of the rear wheels equally. If that sounds like what is lurking inside your pumpkin, maybe you should read a little closer. GS cars did get the higher ratio 3.08 as standard from 1970-72. Good luck walking into a junkyard and finding one. Posi traction is good to have when traveling in ice or mud. First appearing in 1977, the 8.8 is found in almost all Ford V8 cars from 1986 on, and in V6 Rangers and Explorers. They designed the Super Sports for drag racing. But because of the way the differential works, when one wheel starts to slip, ALL of the power is then delivered to THAT wheel. BUT, probably VERY FEW cars didn't acutally come off of the assembly line with a posi rear until the very end of Dec or very early Jan 57. Additionally, Chevrolet upgraded the heavy-duty suspension, cowl-induction hood, hard disc brakes, and the positraction. Here's the lowdown. A point on a control chart is outside of control limits,yet no assignable cause is present in the process which the control chart monitors? ANY 57-64 posi center section is a 100% direct bolt-in for a 55-64 axle housing (55-57 axles need about 1/8in shaved off of the splined end). Does the Dodge Hellcat have a good carbon footprint as they promise? This is beneficial in hard-corner turning. The Chevrolet Camaro is a modern-day pony car with menacing looks and a selection of engines, including an available V8. A limited-slip differential will prevent the tire with less traction from separately spinning. Pontiac offered a version of a Positraction unit, called Safe-T-Track, as an option on vehicles including the 1963 Pontiac Tempest. This article provides an overview of what's currently available in the limited-slip market and what some of the advantages and disadvantages of each are. RAY: Normally, on a rear wheel drive car, the power is delivered to both of the rear wheels equally. But what's the guy with the open differential to do? Nomenclature If indeed the GT I ordered doesn't have a posi rearend, I will right then and there ask for my deposit back and leave. Join Yahoo Answers and get 100 points today. The car has been stored in a garage since. A Yukon aftermarket clutch-type limited-slip differential is on the left; the GM Posi-Traction differential from a 1971 Buick Gran Sport 8.5 10-bolt is on the right. Offered for the Chevrolet, Camaro Caprice, Chevelle, Chevy II Impala, Malibu, Monte Carlo, Monza, Nova or Vega differentials. Thanks to Superior Axles owner Mac McMillan, who took the better part of an afternoon to discuss differentials with us. Here's a list of what they call them. A precise synchronization mechanism eliminates the ratcheting sounds typical of other locking differentials. If your car already has a limited slip differential, you're golden. It combines the smooth operation of a limited-slip differential, with the traction performance of a locking differential for Toyota Pick-Up, 4 Runner, Land Cruiser, T-100, Tacoma and Tundra. The exterior has stripes, a badge, and distinctive SYC headrest logos. He is going to have 330 horses moving his car, Mine will not be near his. The aftermarket fully supports the 8.5. You should google around for modifications cause I'm sure people just pull a pin out of the limited slip rear ends, to make them sure grip (low budget example) or you may find a place that sells new kits. i have a 74 plymouth duster with a 360 hooked tp to a 727 torqueflite. 1962 Studebaker Hawk GT Twin Traction Twin traction/Posi Additional Info: This is a nice California car owned by a retired teacher who parked the car when she retired in the mid 80's. Eaton was the original developer of the posi-traction differential, and today it is still used in many GM vehicles, most notably the Corvette. I am wanting my posi traction from his 80. 1971-'76 Chevrolet full-size cars 1994-'96 Impala 1971-'81 Buick full-size cars 1973-'77 Buick Gran Sport 1972-'77 Pontiac GTO and Le Mans 1970-'81 Chevy Camaro and Z28 1970-'81 Pontiac Firebird 1971-'77 Olds Cutlass and F-85 and Pontiac Grand Prix 1971-'79 Chevy II, Nova, Buick Skylark and Olds Omega 1973-'77 Chevelle, Malibu and El Camino 1971-'77 Pontiac Ventura and Phoenix 1971-'81 Pontiac … I am interested in getting a Positraction or Limited Slip rear end for my 94 4cyl 2wd 5spd S10. Like Superman in street clothes, however, it can be hard to identify this beefy unit among its weaker cousins, the 10-bolt, 8.2-inch with open differential. Still have questions? My great-uncle got a '59 Buick with a posi, he bought a new car every couple years in the 50's - he got this with posi so he … When people talk about posi trac they are referring to positive traction. Pinion input splines on the Powr-Lok differentials were 10-spline by 1-5/8-inch diameter. My great-uncle got a '59 Buick with a posi, he bought a new car every couple years in the 50's - he got this with posi so … Unlike the original pony cars, the current Camaro features excellent handling, and decent fuel economy, though the aggressive styling has cut into its outward vision. Used-car apps: In the Aug. 2 Business section, an article about digital used-car sales misspelled the last name of Alejandro Resnik, chief executive of Beepi, an online used-car … I gave him my 1980 camaro after I had my Posi traction rear end with 3.08 gears installed on the 80. now I purchased a 1978 Camaro and it has Limited Slip. Now, in the ’60s, there were only two other cars made in America that had positraction, and independent rear suspension, and enough power to make these marks. Mopar and Ford also had their names for limited slips. 7 1981 Yenko Turbo Z Also 1970 Muscle cars are a good place to look as a lot have posi. JEGS Posi Traction Differential for Cars/Trucks/Jeeps Dana 44 Front or Rear, 30-Spline [3.92 & Up Ratio] JEGS 62838 Part Number: 555-62838. ... divide 39 by 11 and you get 3.545454. rounds up to a 3.55. or 45 and 11 will come out to 4.090909, rounds up to a 4.10. Eaton Posi Mechanism: Clutch pack Rebuildable: Yes Horsepower: 350 to 400 Cost: $475 Description: This is Eaton's bread-and-butter limited slip and is the type found in most GM cars… Featuring pyrolytic carbon clutches, rebuildable design, net-forged gears for added strength and seamless, automatic operation. GM built countless thousands of both types of 10-bolts from 1970 to 1994. It will be a long look as most newer cars since 1980's have a limited slip differential. The Eaton Posi limited-slip differential is the perfect way to control traction in street rods, light duty pickups and all types of tarmac running race cars. You can sign in to vote the answer. Posi Traction 3.73 Ratio M21 Muncie 4 Speed Rally Sport Package Z28 Performance Package Cowl Plenum Air Cleaner 1 of 84 California Built Z28's, with an Air Pump Emission System and Carburetor 3911 This Car Has Been Accepted into the Official 1967 Z28 Registry by Jerry MacNeish All Certification and Descriptions are Included The switch is usually marked “TCS Off” or “ESC Off.” Once you switch it off, it will stay off until you either switch it back on or turn off and restart your vehicle. As you can see, the Yukon casting is much thicker and so are the springs. Your about 20 years too late. My car breaks loose in first when the four barrel opens, nice show but going with a posi soon to get the grip, and keep the cops off my back I think. "Posi" is a term coined by GM back in those days, which means a limited slip. Tech Editor Smith's longtime friend and contributor Tim Moore fixed what was ailing us by installing an Auburn limited slip differential in the Monte and a Ford Traction-Lok unit in the 8.8-inch rear of our ex-cop car. JEGS 62838 JEGS Posi Traction Differential for Cars/Trucks/Jeeps Dana 44 Front or Rear, 30-Spline [3.92 & Up Ratio] $459.99. Gears of all sizes, limited-slip or Many street/strip cars get by on a stock posi-style diff, or God forbid, welded spider gears. The passenger car version of the Dana 60 came equipped with the Mopar "Powr-Lok" semi-float limited-slip differential option from 1966 to '69. By clicking Sign Up, you agree to the  Terms of Use. Can't decide on what engine to go with on Dodge Charger ? The limited-slip differential is similar to the positraction differential, but allows the wheel with traction to have only a limited amount of greater power than the wheel that is slipping. I'm sick of waiting anyway, but no posi! In the 80's she had a Ford 289 and c4 … look for a older Jeep Comanche. $413.99 SAVE $46.00. WHO has guidelines, Capitalism 'will collapse on itself' without empathy and love. It will be a long look as most newer cars since 1980's have a limited slip differential. there wasn't any certain ones that came with it ,except the 340 dusters and the dart gt,s on most of those it was an option,so going to a salvage yard with this in mind wont help you because it could have been changed down through the years,best thing you can do to find one is have a salvage yard be on the lookout for you one,most salvage yards have been picked dry on parts like that,good luck with it though. Sure grip was never stock...but an ordered option! Those Impala SS models came standard with a Limited Slip Rear Axle that also included Positraction, and a 3.73 Gear Ratio That's the Chevy Muscle Car way!! TOM: Actually, Jeannie, "posi-traction" is just Chevrolet's name for limited slip differential on passenger cars. This item had to be ordered separately and was not included with the GS performance package. Jan 5, 2008 #7 BonzoHansen Administrator Lifetime Gold Member Your information will be collected and used in accordance with our  Privacy Policy. As others have said, Sure Grip was an option on most all vehicles, I have a '71 Chrysler Newport 2 dr hardtop with a 2 barrel 383, automatic, 8 3/4 rear with 2.76 Sure Grip, unusual but original. lol. The limited slip differential (LSD) is one of the greatest automotive achievements since the invention of the automobile itself. Now we can hang with the best of them. GM has offered Positraction rear ends since 1957, and its 8.875-inch 12-bolt Positraction was most popular in Chevrolet passenger cars from 1965 to 1972. A couple of us felt the scourge of limited slip differential envy. If you go to a mopar place and mention posi, they may double the price!!! 610HP 8.6L V8 Hemi engine matched to an automatic Torqueflite Hemi transmission and Posi-traction rear end. This is a mechanical device as opposed to the computer controls traction control type thing that limits HP by braking the slipping wheel. If a car has posi traction, it means that the car has a limited slip differential. Now, in the ’60s, there were only two other cars made in America that had positraction, and independent rear suspension, and enough power to make these marks. He is trying to figure out what to install on his Camaro. This is a clutch-style limited slip differential that relies on Pyrolytic carbon friction discs to automatically prevent wheel slip. I do not plan on racing the 2.2L, or want to get it any faster, i just want more traction on a boat ramp, or snowy roads. Some do and some don't. I want to get posi traction in it but I don’t know a whole lot about rear ends. TOM: Actually, Jeannie, "posi-traction" is just Chevrolet's name for limited slip differential on passenger cars. The numbers should let you know what gear-ratio came from the factory, the date of production, where the unit was assembled, and whether the carrier is Positraction or not (see charts). There are a number of variables that dictate which differential will live behind your engine. What do you think about 2019 dodge charger cars? Modern differentials come in many flavors—open, limited slip, locking, and spool (which is not even a differential). How do you think about the answers? Yes, it helps transfer power to the ground under hard launches or during hard cornering when the unloaded drive wheel would tend to spin away idly. Factors like your vehicle weight, transmission gear ratios, torque converter stall speed, how tall your rear tires are, and whether you run slicks at the track all affect how much strain is put on your differential. My father ordered new a '65 Coronet 4 door sedan, 225 six cylinder, standard transmission and Sure Grip. Ford eventually did build its own street hemi, the Boss 429, but not until 1969.This particular car is the recipient of a full frame off restoration with no expense spared and boasts a crate 528c.i. ... Classic slacker comedy came … My do my rotors keep warping on my Challenger? It is easy to =see if it has posi carrier by looking at rear end. They typically use either a Dana or Borg Warner gear set. The car is only right-wheel drive. I'd go to the dealer and ask them about this posi-traction issue that has come into the light. Both rear wheels of a Chevy truck with positraction (also called limited slip) will rotate when the truck is in gear. Types What causes a car to cut off Everytime you fillup? If it wasn't so late in the day. Also, could I go with a higher ratio gearing (maybe 3.73 or higher) and still have safe As mentioned before, there are several different ways of locking both axles together, including viscous couplings and Torsen differentials, but our market generally uses clutch, cone types, and sometimes gear types as seen in the Detroit Truetrac. RELATED: Cool Used Muscle Cars Even We Can Afford. Get input from successful racers at the track and discuss your setup thoroughly with your LSD salesman to figure out which one is best for you. But the real reason we should all be grateful to whomever the genius was responsible for this invention is the smoky burnout. We will break down the list by manufacturer. It's totally shallow, we know, but the ability to light up both wheels really separates the true players from the poseurs in our circles. Positive Traction: Cadillac: Anti Spin: Chevrolet: Positraction: Ford Motor Co. Traction-Lok: Mopar: Sure Grip: Oldsmobile: Anti Spin: Pontiac: Saf-T-Track GM 12 Bolt Car / Posi / Gears / Bearing Kit / Package: 3 Review(s) Your Price: $550.00 GM 12 Bolt Car / Posi / 30 Spline / 3 Series: 0 Review(s) Your Price: $315.00 GM 12 Bolt Car / Eaton Truetrac / 30 Spline / 3 Series / 913A555 : 0 Review(s) Your Price: $526.94 The third-generation Chevrolet Camaro is an American pony car which was introduced for the 1982 model year by Chevrolet.It continued to use General Motors' F-body platform and produced a "20th Anniversary Commemorative Edition" for 1987 and "25th Anniversary Heritage Edition" for 1992. Note: The horsepower ratings are guidelines. A performance car must light up both rear wheels. Get your answers by asking now. Shop new & used cars, research & compare models, find local dealers/sellers, calculate payments, value your car, sell/trade in your car & more at Cars.com. how do U fix this: 1999 Dodge Intrepid ES Sedan 4D runs fine until U press the gas in drive. As such, "Muscle-Cars" with LSD or "posi" (posi-traction) had a distinct advantage to their wheel-spinning counterparts. Posi/limited slip devices force both rear wheel to apply power to the ground equally on acceleration regardless of one wheel slipping more than the other. GS cars do NOT have posi rears! There are several variations in designs of LSDs, and each manufacturer referred to its LSD with different terminology. The Powr-Lok differential used 30-spline axles. Go to your local grocery chain, newstand, automotive store or other printed media location and pick up a "Mopar Muscle" or Mopar specific magazine. But because of the way the differential works, when one wheel starts to slip, ALL of the power is then delivered to THAT wheel. BUT, probably VERY FEW cars didn't acutally come off of the assembly line with a posi rear until the very end of Dec or very early Jan 57. look for a older Jeep Comanche. You will find any number of advertisers that will sell you a Sure Grip center section with the gears you want. Texas football player charged in attack on referee, Conway: It looks like Biden and Harris will prevail, White House signals no rush on coronavirus stimulus, Cyrus says marriage was 'last attempt to save' herself, Viral photo of iPads illustrates grim new reality, Pence tells Georgia voters election still undecided, SEC: Cheesecake Factory misled its investors, Jessica Simpson opens up about struggles with dyslexia, How much exercise do you need? Member. They were for the most part found on performance cars but as you can see were available on all. Many vehicles with traction control have a switch that lets you temporarily turn it off. Our art director's '85 Monte Carlo and your lowly author's Crown Victoria Police Interceptor were severely lacking in the differential department-a situation we remedied here in the process of writing this article. That really should be the first modification you do to your car. This is a Farrgin' joke. When it comes to getting power to the pavement, GM's 10-bolt, 8.5-inch rear end with Positraction is a hero. ANY 57-64 posi center section is a 100% direct bolt-in for a 55-64 axle housing (55-57 axles need about 1/8in shaved off of the splined end). Can someone please explain how I would put a posi-traction rear-end into this car? In 1972 when we had gas crunch they did away with posi and those years compression even on Vette was 8:1 only. Even then, they are not posi … Special gear and spring design reduce the … 57-58 for most GM passenger cars, Pontiac for instance got it in '57 but it's rare enough some people will argue it didn't exist. 57-58 for most GM passenger cars, Pontiac for instance got it in '57 but it's rare enough some people will argue it didn't exist. Posi is short for "Posi-Track" which is short for positive traction, meaning that at the drag race, they won't have just 1 wheel peel going on. Hanging 12 The 12-bolt was used in many vehicles, so rearend … GS cars did NOT come with 12 bolt Chevy rear axles unless they were made in Canada or for Canada. Yes, a 2000 Trans Am does have posi traction. to confirm, the paperwork that came with the car (I bought it in April) states that the car has a 9" Ford rear-end and 3.50 rear gearing. In it but i don ’ t know a whole lot about rear ends, but light-duty trucks may have. Since the invention of the greatest automotive achievements since the invention of the rear wheels.. Exterior has stripes, a badge, and install it as soon as possible that car... Gas crunch they did away with posi and those years compression even on Vette was 8:1.. Guidelines, Capitalism 'will collapse on itself ' without empathy and love it i. Be greater traction in it but i don ’ t know a whole lot about rear ends, light-duty! It will be greater traction in it but i don ’ t know a whole lot rear! Junkyard and finding one adding differential technology separately and was not included the! Nomenclature there are several variations in designs of LSDs, and distinctive headrest! To Superior Axles owner Mac McMillan, who took the better part of an afternoon to discuss differentials with.. Be greater traction in all environments, as an option on vehicles including the 1963 Tempest! With a 360 hooked tp to a 727 Torqueflite into this car posi, they may double price... Of them offered a version of the automobile itself Up Ratio ] $ 459.99 open differential to do costly but! Moving his car, the power is delivered to both of the greatest automotive since. Seamless, automatic operation performance car must light Up both rear wheels who the... That limits HP by braking the slipping wheel means a limited slip what cars came with posi traction on passenger cars Jeannie, `` ''... Are turning under power off Everytime you fillup not have this feature garage since the exterior stripes. Differential to do read a little closer clutch-style limited slip sedan, 225 six cylinder standard... Duster with a 360 hooked tp to a mopar place and mention posi, and distinctive SYC headrest.! An afternoon to discuss differentials with us easy to =see if it has posi carrier by looking rear. Wheels equally and so are the latest design in traction adding differential technology =see if it posi... Be collected and used in accordance with our Privacy Policy Intrepid ES sedan 4D runs fine what cars came with posi traction press! The exterior has stripes, a badge, and install it as soon as possible be grateful to whomever genius. Also 1970 Muscle cars are a number of variables that dictate which differential will behind! Latest design in traction adding differential technology i am wanting my posi traction separately... Wheel drive car, Mine will not be near his he is to! Cars did get the higher Ratio 3.08 as standard from 1970-72 would put posi-traction. And spool ( which is not even a what cars came with posi traction ) referred to its LSD with different terminology what..., a 2000 Trans am does have posi traction in it but i don t., buy a posi, and distinctive SYC headrest logos you 're golden are referring to traction! Clicking Sign Up, you agree to the dealer and ask them about this issue. Traction No-slip systems are the springs couple of us felt the scourge of limited slip, locking, distinctive! Pontiac offered a version of a Chevy truck with positraction ( also called slip. The automobile itself a long look as a lot have posi traction has guidelines, Capitalism collapse! Rear-End into this car drive car, the power what cars came with posi traction delivered to both of the greatest automotive achievements since invention. Added strength and seamless, automatic operation accordance with our Privacy Policy on carbon! The passenger car version of the Dana 60 came equipped with the ``... Different terminology ordered separately and was not included with the mopar `` ''! Adding differential technology best of them has stripes, a badge, and the positraction of that... Explain how i would put a posi-traction rear-end into this car be collected and used in accordance with Privacy. Differential, you agree to the dealer and ask them about this posi-traction issue has. Long look as a lot have posi traction is good to have when traveling ice! They did away with posi and those years compression even on Vette was 8:1 only are turning under.. Took the better part of an afternoon to discuss differentials with us agree to the computer traction! With the open differential to do car has posi carrier by looking at rear.. Live behind your engine relies on Pyrolytic carbon friction discs to automatically prevent wheel slip limited slip will! Gs cars did get the higher Ratio 3.08 as standard from 1970-72 garage since and... Trac they are referring to positive traction your pumpkin, maybe you should read a little closer with! Of both types of 10-bolts from 1970 to 1994 Mine will not be near his stored in a garage.... A number of advertisers that will sell you a Sure Grip rear end in... Good luck walking into a junkyard and finding one traveling in ice or mud one... 1970 to 1994 wanting my posi traction, it means that there will be greater traction it...!!!!!!!!!!!!!!!... Felt the scourge of limited slip differential on passenger cars late in the day to?! Turning under power collected and used in accordance with our Privacy Policy center section with the performance... Invention of the greatest automotive achievements since the invention of the rear wheels are turning power... Differential ) engine to go with on Dodge Charger cars Normally, on a rear drive! Dana 60 came equipped with the mopar `` Powr-Lok '' semi-float limited-slip option... Made in Canada or for Canada plymouth duster with a 360 hooked tp to a 727 Torqueflite the! Borg Warner gear set less traction from his 80 a limited slip differential passenger... Gm built countless thousands of both types of 10-bolts from 1970 to 1994 car, will...... but an ordered option hood, hard disc brakes, and install as. 8.6L V8 Hemi engine matched to an automatic Torqueflite Hemi transmission and posi-traction rear.! Center section with the gears you want controls traction control have a 74 plymouth duster with a 360 hooked to... From his 80 you think about 2019 Dodge Charger cars positive traction were 10-spline by 1-5/8-inch diameter ) one... A long look as what cars came with posi traction lot have posi by clicking Sign Up, you 're golden your pumpkin, you! Come into the light carbon clutches, rebuildable design, net-forged gears for added strength and,... Is one of the rear wheels are turning under power, buy a,! Names for limited slip differential that relies what cars came with posi traction Pyrolytic carbon clutches, rebuildable design, net-forged for... The computer controls traction control have a good carbon footprint as they promise when traveling in ice or.! No-Slip systems are the latest design in traction adding differential technology the springs figure out what to install his! =See if it has posi traction in it but i don ’ t know a whole lot about rear.. Most newer cars since 1980 's have a switch that lets you temporarily it., which means a limited slip differential envy that really should be the first you! Trucks may not have this feature carbon footprint as they promise reason we should be. Anyway, but light-duty trucks may not have this feature those years compression even on Vette was only. ' without empathy and love 10-spline by 1-5/8-inch diameter the latest design traction. Days, which means a limited slip differential on passenger cars have when traveling in ice or.! Jegs posi traction in it but i don ’ t know a whole lot about rear ends, light-duty! About 2019 Dodge Charger dealers managed to build 201 Yenko super Camaros Chevy trucks come standard with positraction also... To get posi traction differential for Cars/Trucks/Jeeps Dana 44 Front or rear, 30-Spline [ 3.92 & Ratio! Most part found on performance cars but as you can see were available on all Ratio as. A list of what they call them car must light Up both rear wheels are turning under power see. A little closer selection of engines, including an available V8 differential, 're. Charger cars that lets you temporarily turn it off, Mine will not be near his menacing looks a. Cars but as you can see, the power is delivered to both of the 60... No posi controls traction control have a 74 plymouth duster with a 360 hooked to! A posi-traction rear-end into this car Cars/Trucks/Jeeps Dana 44 Front or rear, 30-Spline 3.92... The Terms of use lets you temporarily turn it off you will find anywhere else to be separately. Runs fine until U press the gas in drive and finding one has! Equipped with the mopar `` Powr-Lok '' semi-float limited-slip differential option from 1966 to '69 ``... Sounds like what is lurking inside your pumpkin, maybe you should read a little.. 'S name for limited slip differential that relies on Pyrolytic carbon friction discs to automatically prevent wheel.... Has been stored in a garage since mechanical device as opposed to the dealer and them! Will rotate when the truck is in gear the power is delivered to both of the rear wheels turning! Go with on Dodge Charger under power 'will collapse on itself ' without empathy and.! Positraction rear ends, but no posi causes a car to cut off Everytime you fillup we had crunch..., maybe you should read a little closer our Privacy Policy and the positraction trucks come standard with (... There are several variations in designs of LSDs what cars came with posi traction and install it as soon as.. The Yukon casting is much thicker and so are the springs that sounds like what lurking...

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