DinoKruzOridanc,
Are you talking about the pilot bushing that is in the hole in the block where the tip of the transmission shaft inserts? If you are, that part is supposed to be pressed into the block and fixed in place.

There is no other brass spacer that I am aware of.

Kent

1937 Chevy 1/2 ton
1942 Chevy 1/2 ton
1947 Diamond T Model 509
1951 Chevy 1/2 ton
1950 Chevy COE Model 5700 ~ "Barney" ~ And more pix