Is the pilot bushing all the way in? The biggest problem I had was the TO bearing pulled part way out of the fork as I wiggled the trans. Then the shifter linkage wouldn't allow me the correct angle to get the trans back into the TO bearing while staying on the fork all the way. And lastly, I think there is too much play in the output shaft of the M21 which causes my current occasional noise.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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