Quote Originally Posted by Fbody383 View Post
some will say you can just pull the front plate and swap it and the input shaft. We're in the camp if you're pulling it apart look at everything and shim it anyway. Since we starting shimming 2-3 thou tighter than factory we've had fewer issues.
And don't forget to marinade the blocker rings.

@David:
Do I remember right that on one rebuild we had some issues measuring for shims because usually the trans was dry but on that particular one there had been trans fluid in it and we kept getting different readings on the dial depending on if we spun the shaft or not? If I recall, it made 1-2 thou difference in the measurement.