Transmission Pilot Bearing Spacer

[Don/WI]

I am rebuilding my transmission by installing all new bearings. I have new shafts with o-ring grooves to eliminate oil leakage out the rear of the tranny. I had the end of the Transmission Main Drive Shaft built up with weld and turned to 0.668" diameter.I selected the best gears I could find that appear to be in very good condition with no pitting. I am using Les Andrews instruction book for assembling the transmission. He states that the Transmission Pilot Bearing Spacer should be replaced if it show any signs of wear. I am sure that the spacer is worn, but I did not purchase a new one when I ordered the new bearings, gaskets, etc. I have access to a machine shop so I can easily make a new one rather than wait for a new one. Does anyone knoiw what the thickness of a new spacer should be? The one I removed is 0.090" thick. Is there a maximum thickness it should be? Thanks in advance for any responses. Also, is there anything else I should do to insure a good running transmission (short of buying a new one)? Don/WI