jhaa_lives writes, "The alignment is off by 0.015 "

Heck, this is significantly less than the margin of error of your measuring method. I would not give this amount a single thought.

Novak is a great place for information. I send people there on a regular basis, even buy parts from them. Few years back I had them add a part to their SM420 rebuild package; they forgot an important "freeze plug" like seal at a gear shaft end up front and bottom. Novak makes their own now. Nonetheless, this missing part informed me those boys are not fully experienced at some things, like rebuilding an SM420 truck trans.

Look at their photograph for measuring bellhousing alignment. What do you see inside? A pair of vise-grips clamped on a bolt head. How accurate is this? Not very!

Only way you can "accurately" measure your crank to bellhousing alignment is with a special jig which plugs into the pilot bearing and bolts to the bellhousing at the transmission bolt holes. You need a shaft which simulates your transmission input shaft and mounting surface. This is the only way to attain accuracy into the thousandths of an inch.

Measure your alignment six times. I bet you will find different readings for each measurement. I would not worry about this, you have far more wobble in your input shaft and clutch disc than this measurement you cite.

Billyray


1948 GMC 3 Ton Flatbed
1952 Chevy 1/2 Ton Panel
1956 Chevy 3/4 Ton NAPCO