Hello. I am in the midst of installing an ITR LSD and GSR FD into my LS transmission. I got everything out and pressed the bearings onto the new diff. The only thing I am having problems with is where I am supposed to be measuring the tolerance of the diff so I can buy the proper sized shim. I know it is supposed to be between the bearing and the case but how far back. Towards the inside of the bearing there is a lot of space between the bearing and the case (or axle seal really). But, when measuring a little deeper, there is not space what-so-ever between the bearing and the casing.

I have been following along with the "Tranny Overhaul & JDM ITR Final Drive/LSD Install" which has been a huge help but a lot of the pictures are missing. When he measures the tolerance he just says to "measure the tolerance here" but there is no picture so I can't see where "here" is. Also, a lot of people have said there is a detailed section of the Helm's Manual where they go step by step for shimming the diff to the proper tolerance but I can't seem to find it anywhere. All I can find is how to shim the mainshaft. Thanks ahead of time!

 

Did your LS transmission have tapper bearings or the newer one piece?

 

not to thread jack, but my trans has the taper ones and i have the newer sealed one piece. does it matter which ones to use?

 

Use the sealed bearings.

 

Yep, got it! Diff is installed and working. Horrible axle seal leak though because I installed the driver's side axle seal incorrectly.