LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

POSI/Limited Slip

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Old Jul 17, 2003 | 10:03 PM
  #1  
Mir Hussain's Avatar
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From: Delta Quadrant (Toronto)
Thumbs up POSI/Limited Slip

What is the proper method of checking it. I want to make sure its not making any noise, and doing proper slip.
I been told to peel out and look for tire marks. I think that method is Getto
Is there any proper method. I want to change it, if its worn out. Dont mind to get SLP take off
Old Jul 17, 2003 | 10:49 PM
  #2  
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From: Wichita Falls, TX
i bet you would be able to tell if your posi is going out. you would be doing some great one wheel burnouts. all i know is the getto method, sorry.

mark
Old Jul 17, 2003 | 10:59 PM
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The "proper" method is to check the amount of torque it takes to rotate the differential with both wheels off the ground and the transmission in park or in gear. Then again, with one rear wheel on the ground and in transmission in neutral. A special adapter is needed to put on the axle flange, so a torque wrench can be accurately used to measure.

Basically, if you want to try to judge if the posi is holding, with one wheel off the ground and trans in neutral, it should take in the range of 43-67 lb. ft. of torque to turn the raised wheel.
Old Jul 18, 2003 | 09:07 AM
  #4  
Mir Hussain's Avatar
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Is it good idea to change the POSI when you get gear install. Or I could do it later. I dont want to do it later. Then find out it making noise and etc ?
Old Jul 18, 2003 | 09:12 AM
  #5  
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Originally posted by Mir Hussain
Is it good idea to change the POSI when you get gear install. Or I could do it later. I dont want to do it later. Then find out it making noise and etc ?
If you have doubts about it, changing it with the gear install would be cost efficient. You would have to pay again to have the gears set up to change the posi, since the carrier has to be removed to do the work. Then again, your posi may be fine.
Old Jul 18, 2003 | 09:18 AM
  #6  
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Hmmm
ok then SLP take off.
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