I know this subject has been beat to death but here goes. Been thinking about changing the rear diff to a posi unit in my 2002 4x4. It's got 3.73 gears stock. What brands seem to hold up the best? What kind of price differences can I expect to see? How long would the swap take doing it at home? I have rebuilt other rear ends in the past but never a Chevy truck. Does the computer need to be told that it is now a posi unit, will the thing have a brain fart if it does not know its a posi unit. Thanks for the help guys.

 

auburn is usually the way to go on posi or a eaton. I don't think the computer will have any trouble but their is alot of guys that know alot more then me.

 

I have an Eaton and love it, and NO u dont need a retune

 

eaton limited slip or detroit locker.

 

[QUOTE=TG02Z71]I know this subject has been beat to death but here goes. Been thinking about changing the rear diff to a posi unit in my 2002 4x4. It's got 3.73 gears stock. What brands seem to hold up the best? What kind of price differences can I expect to see? How long would the swap take doing it at home?

I have a PowerTrax in my 00 GMC and love it. Took about an hour and you don't need to re-set the R&P. I am running a mostly stock 5.3 in a ECSB 2wd and no problems - 6 months old, Just an option.

LK

 

[QUOTE=Alwhite00]Thanks for the feedback guys. Makes my decision a little easier anyway.

 

I have the Eaton , and it great.

 

[QUOTE=Alwhite00]where did you get your powertrax and what was the part #?

 

eaton. I burned up an auburn pro in my old stump-humper truck.

 

you can get a good deal on eaton lokcers on ebay. you might want to check it out