target1911

Car....
00' Trans Am. Not WS6. 180k mi. All factory stock. Daily driver

Problems......loud whine..almost goes away in right curve/turn
Sometimes the rear won't lock both tires.

Questions.....
What RE do I have?
Gears ratio?

I'm guessing I have to replace the rear end and all bearings
What are my options?
Factory or aftermkt?
Rebuild it?

I want to keep factory ratio......mostly due to not wanting to lose fuel mileage

ssvert99

iTrader: (26)

if you don't plan on doing any racing with the car I would rebuild it.
*get a real good used or new AAM ring and pinion set. This is what the factory used and is much better than most of the aftermarket gears that will make noise.

*get a Eaton posi unit first... very durable and rebuildable.

*replace all the bearings and seals

*use a solid pinion spacer to set pinion bearing preload instead of a crush sleeve.

*install a LPW rear girdle cover instead of the factory sheet metal one.

it will cost ya a few bucks if you do it right this way, but if you don't abuse the car at all it will last a long time. Give us a call if you need help with these parts... we have a real good deal on anything for your f-body rearend and suspension.

target1911

Next question.....
I located a used rearend. It from an 02 ws6 with 30k on it for really cheap. Will it fit AND work properly in my car?

Forgot to add that mine is an auto.

target1911

Not sure if this will be a problem....the rearend is from a 6sp car and mine is an auto. Could I just swap my traction control to the other rearend?

FirstYrLS1Z

iTrader: (4)

your auto could be 2.73(standard GU2) or 3.23(optional GU5),6 speed is 3.42.
If yours is 4 channel traction control and potential swap rearend is 3 channel ABS only,you'd have to pull(4) all axles and put your backing plates onto the rear.

INMY01TA

iTrader: (1)

If it's from a six speed it would have 3:42 gears, an improvement for your auto.

target1911

An improvement for performance but what will it do for gas mileage?

Are those parts easy to swap?

FirstYrLS1Z

iTrader: (4)

you never stated what your rear ratio is in the 00' auto trans am !