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Old 12-17-2013, 06:53 AM   #4
Mac VP
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Join Date: May 2010
Location: Cincinnati, OH
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Default Re: BALLS AND SPRINGS vs BLOCKS AND CLIPS

It sounds like you have a slight mismatch in your parts. The synchro hub with the 3 balls & springs goes on the 81A-7061 mainshaft (the one with the little pin sticking out just in front of the spiral splines).

The synchro hub that has no holes for the balls & springs (takes the three inserts with bumps and two wire springs) is longer thru its length, and is meant to be used with the 51A-7061 mainshaft (no pin).

As a side note, you can use the later style insert kit (3 inserts with bumps and 2 wire springs) on the earlier style hub ( the type that used the 3 balls & springs and the inserts with the holes in their center.

This is pictured clearly in our transmission book.
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