Do i have lsd? how to know
11-13-2010, 10:52 PM
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Do i have lsd? how to know So ive been searching all over this site and the general internet and cant find a defininte answer. do 98-02 ls1 cars have limited slip? ive been hearing auburn hear and there and i even think my car spins both wheels but that could be my imagination. so mine is a 2002 z28. do i have lsd? auburn? shed some spec light please. anybody. i cant believe its soo hard to find
11-14-2010, 01:25 AM
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LSD = posi = both tires should spin in "most cases"
One wheel can and will spin more or less depending on circumstances, however, if functioning correctly, it should leave 2 basically identical marks when going in a straight line.
Some people confuse lsd or posi with a locker which is where the wheels are actually locked together when going straight. This is not the case with a posi or LSD rear. An open diff, think most V6 f bodies and non-performance vehicles, will one wheel peel almost all the time, when going straight or around a turn and when in the wet or mud.
All V-8 3rd and 4th gen f bodies that I have heard of had a posi rear, either Auburn or Zexel torsen. Auburn being a clutch type posi, and the torsen being a gear driven posi. I believe the torsen was standard on 99 and up cars.
One wheel can and will spin more or less depending on circumstances, however, if functioning correctly, it should leave 2 basically identical marks when going in a straight line.
Some people confuse lsd or posi with a locker which is where the wheels are actually locked together when going straight. This is not the case with a posi or LSD rear. An open diff, think most V6 f bodies and non-performance vehicles, will one wheel peel almost all the time, when going straight or around a turn and when in the wet or mud.
All V-8 3rd and 4th gen f bodies that I have heard of had a posi rear, either Auburn or Zexel torsen. Auburn being a clutch type posi, and the torsen being a gear driven posi. I believe the torsen was standard on 99 and up cars.
11-14-2010, 09:24 AM
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LSD = posi = both tires should spin in "most cases"
One wheel can and will spin more or less depending on circumstances, however, if functioning correctly, it should leave 2 basically identical marks when going in a straight line.
Some people confuse lsd or posi with a locker which is where the wheels are actually locked together when going straight. This is not the case with a posi or LSD rear. An open diff, think most V6 f bodies and non-performance vehicles, will one wheel peel almost all the time, when going straight or around a turn and when in the wet or mud.
All V-8 3rd and 4th gen f bodies that I have heard of had a posi rear, either Auburn or Zexel torsen. Auburn being a clutch type posi, and the torsen being a gear driven posi. I believe the torsen was standard on 99 and up cars.
One wheel can and will spin more or less depending on circumstances, however, if functioning correctly, it should leave 2 basically identical marks when going in a straight line.
Some people confuse lsd or posi with a locker which is where the wheels are actually locked together when going straight. This is not the case with a posi or LSD rear. An open diff, think most V6 f bodies and non-performance vehicles, will one wheel peel almost all the time, when going straight or around a turn and when in the wet or mud.
All V-8 3rd and 4th gen f bodies that I have heard of had a posi rear, either Auburn or Zexel torsen. Auburn being a clutch type posi, and the torsen being a gear driven posi. I believe the torsen was standard on 99 and up cars.
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11-17-2010, 10:01 PM
#8
All years had an option for limited slip but not all are the same.
1998 used an Auburn cone type differential (some people call this posi) like the LT1 cars of previous years. As it wears the clutches hold less and less torque until the differential behaves just like an open differential.
1999-2002 used a Zexel Torsen worm gear limited slip differential. It's basically a mild locker and it doesn't wear like the posi. It behaves like an open differential until wheel slip causes it to lock up. It is stronger than the Auburn posi and works pretty well for drag racing (if the rear axle lives). The only way you can tell if you have a Zexel Torsen is to either burn two rubber strips down the road, or remove the rear cover to visually verify.
SLP, who built the SS and Firehawk cars, also had an option for a heavy duty Eaton carrier. This was basically a more aggressive posi with more holding power than the Auburn. I don't know what years this was available.
1998 used an Auburn cone type differential (some people call this posi) like the LT1 cars of previous years. As it wears the clutches hold less and less torque until the differential behaves just like an open differential.
1999-2002 used a Zexel Torsen worm gear limited slip differential. It's basically a mild locker and it doesn't wear like the posi. It behaves like an open differential until wheel slip causes it to lock up. It is stronger than the Auburn posi and works pretty well for drag racing (if the rear axle lives). The only way you can tell if you have a Zexel Torsen is to either burn two rubber strips down the road, or remove the rear cover to visually verify.
SLP, who built the SS and Firehawk cars, also had an option for a heavy duty Eaton carrier. This was basically a more aggressive posi with more holding power than the Auburn. I don't know what years this was available.
