[Rick Parker]

Mr Fixit

Wooooowhhhhhhhhhh! I did not say that this dimension is not critical, in fact it is crucial! It is one of the problems often created by the unkowing when a gear is replaced. I stated thet decking the block did not affect the installed hieght.
The dimension to use for gear installation is published, printed and available from MSD, (and other sources) it may be included in the packaging with the gear from MSD. I would also agreee with the earlier post stating that the press fit of the gear on the shaft
is very important to retention. The roll pin size can be increased to 3/16ths but the press fit is probably more responsible for its retention and torque capacity.
Once this fit is right, it is pretty much bullitproof.

Rick