So I decided to proceed with bumping up the gearing on the '98 LeSabre from 3.05 to 3.29:
(This is IMO a "performance" mod...but feel free to move this thread if in the wrong forum)
Right now I'm in the "research stage," so of course I've got a ton of questions.
, all I need is:
-a 3.29 W-body (e.g.) non-HD differential and sun gear and thrust bearings
-a new extension housing seal and right axle oil seal
Is this correct? Any other parts I'd need?
As for parts removal, looking at the FSM, it seems I've got to:
1. drain the transaxle
2. pop the ball joint (using special GM tool if possible, to avoid splitting boot)
3. disengage axle from hub (using puller...Autozone loaner??? )
4. remove the halfaxle from tranny (planning on using the wood block and hammer trick)
5. remove the extension housing
6. remove the differential, sun gear, thrust bearings
I think I'm mostly good up to step 4 (although, what size is the hub nut?)...it'* removing the differential I have some questions about
It looks like I've got to pop a snap ring (seemingly alternately numbered 509 or 512 in the FSM, depending on which diagram I look at) loose on the output shaft.
The FSM calls for a special tool that looks like a big chisel or flat blade screwdriver...do I really need this special tool?
Once "popped loose", will I need to completely remove this snap ring to slip the current differential, sun gear, thrust bearings, etc. off (and put the replacement parts on)?
If so, what tool do I need for that? Is this a standard snap ring (with holes in the ends)?
Will this snap ring be reuseable? If not, is there a GM part number for the snap ring?
Will I need a special tool(*) for removing and replacing the right axle oil seal in the extension housing?
Anything else I'm overlooking? Other tips / hints?
EDIT: I originally thought I might need a different right side axle...I now no longer believe this, since Lumina/Monte Carlo come in 3.05 or 3.29 configurations, and both ratios use the same axle (according to Rock Auto)