Identifying S4 vs S5 rear diff (LSD?)
Thread Starter
Joined: Oct 2001
Posts: 7,529
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From: Lower Burrell, PA
Identifying S4 vs S5 rear diff (LSD?)
Ok, so I just got my 89 GTUs (oh yea 
) diff in today. I really dont think the person I bought it off of would have lied, but Id like to be sure just for my piece of mind. Is there any way of identifying a S5 LSD diff? When I spin the shaft that the driveshaft bolts to (by hand) both sides spin the same direction. (good?) Also just looking at it can you distinguish between S4 and S5? Thanks
) diff in today. I really dont think the person I bought it off of would have lied, but Id like to be sure just for my piece of mind. Is there any way of identifying a S5 LSD diff? When I spin the shaft that the driveshaft bolts to (by hand) both sides spin the same direction. (good?) Also just looking at it can you distinguish between S4 and S5? Thanks
