Swapping rear ends
This is a discussion on Swapping rear ends within the Drivetrain forums, part of the LSx Technical Help Section category; I think my rear end needs replaced. I have the 3.23 GU5 option (3 carrier) with ABS and no TCS. ...
04-08-2009, 05:38 PM #1
Swapping rear ends
I think my rear end needs replaced. I have the 3.23 GU5 option (3 carrier) with ABS and no TCS. Will a 2.73 GU2 (2 carrier) bolt directly on and function exactly the same? I'm not concerned about the 2.73's because I plan on replacing them with 3.73's. Is there any difference in these rear ends except the carriers? A used GU2 rear end seems much easier to come by and is cheaper from what I've seen.1998 Trans Am, A4, SLP Loudmouth I, US Exotics WS9 ram air hood, Volant intake, 3.23's, 70k miles
04-08-2009, 08:50 PM #2
If you have a rear with the same abs/tcs options as the rear you have already you are golden. I just did a rear swap in mine. I went from 2.73 to 3.42.
04-13-2009, 05:41 PM #3
- Join Date
- Nov 2008
- harrisburg pa.
- 02 vette vert
04-13-2009, 06:14 PM #4
2274rpms in OD with the 3.42 gears according my HPTuners scan and 1800 rpms in OD with 2.73 gears. Both at 70mph
04-14-2009, 07:50 PM #5
Might wanna have the rear check. I have a 98 TA 3.23 3 carrier no tcs and I just damaged the gearsat 70k Got new gears and a rebuild kit from ws6store and it has been ok for about 7k miles now and i do beat on my car, it's a toy for me and I don't really car what breaks. I replaced them with 3.32's since I did alot of hwy but it's going in for 3.73's friday. So check 1st you may not need a rear.1998 Trans Am 85k miles.
Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
02 Trailblazer -Sold
09 Ram 1500 CC - Sold
09 Cobalt SS/TC - Sold
13 ram 1500 LoneStar CC 4x4 - Magnaflow, K&N,and more to come-DD/Toy
04-16-2009, 05:55 PM #6
The rear wheels are both slightly pointing inwards according to my mechanic. I believe the axle is actually bent.
05-04-2009, 06:53 PM #7
Does it make a difference if the rear end I get comes from an automatic or manual? I'm having a hell of a time finding 3 channel, 3 series rear end even on Ebay. They all have TCS and I don't want to have to do that mod.
Last edited by vannatte; 05-04-2009 at 07:05 PM.
05-04-2009, 07:59 PM #8
05-04-2009, 08:07 PM #9
Thanks. I sent him a message already. Everything for sale on Ebay is 4 channel.
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