I am pretty sure they used shims from the factory, but things have changed since then, I think it was momentum, and they wanted to be able to adust things, (they liked doing things like that back then)EGGE doesn't provide shims in kits after 1949, and the shims the machinist wasted my money on, has 8 shims of around .015". I don't know how accurate of adjustment you are supposed to make with 1 shim... Also the bearings I got kind of precluded shimming due to the fact the upper bearing protruded above the parting line ever so slightly, while the lowers were recessed about the same. (maybe vice-versa) Whatever the case I got about .002-.003" crush with no shims.
Last edited by brokenhead; 06/25/2012 2:55 AM.