First off, yes, I need to go get the "real" GM manual for an '85+ truck. This '86 "pre" manual doesn't cover t-cases. Anyways.... So I've got a wobbly rear output on my '91 205. With the engine running, truck sitting, the output moves about 1/8" up and down. Input shaft was bent, replaced that with a supposed good one (never actually checked runout, but came from a runner) but once installed, noticed this problem. Just tore down a 10 spline 205 for the output shaft, (trading it for another) and realized there is a difference where the input shaft "stub" rides in the rear output assembly. On the 10 spline (older) output shaft, the roller bearings are "captured" in the assembly with a flat washer and a snap ring. On the '91 205, upon disassembly, I see that the bearings are NOT retained, but appear to have the groove for the snap ring. There is a washer, but it was installed underneath the roller bearings. Parts in question are 23, 24, and 25 If you can't view that, or want larger, it's one of the links here: http://dyeager535.topcities.com/partsmanual.html According to that pic, it SHOULD be setup just like the older case I have. Or, GM machined the input and/or output shaft differently to do away with those pieces? Anyone comment as to the retention of those roller bearings that has more experience with multiple years of these cases??