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clinebarger · 11-10-2020, 12:02 AM

A new or good used Input Drum would be the fix, The cause is either fatigue or a crack in the drum.

You can lightly smack the drum with a 3/8" extension & it will Ring very clearly like a bell if it's not cracked.

11-10-2020, 12:02 AM	#16
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 4L60E rebuild, no 3rd gear A new or good used Input Drum would be the fix, The cause is either fatigue or a crack in the drum. You can lightly smack the drum with a 3/8" extension & it will Ring very clearly like a bell if it's not cracked.