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clinebarger · 11-09-2020, 12:21 AM

If it in fact has a cross leak between the lube circuit & the 3-4 circuit....I'd almost have to be the Input Shaft.

I have never ran across this before & I'm assuming you're air checking the drum by itself?

11-09-2020, 12:21 AM	#12
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: 4L60E rebuild, no 3rd gear If it in fact has a cross leak between the lube circuit & the 3-4 circuit....I'd almost have to be the Input Shaft. I have never ran across this before & I'm assuming you're air checking the drum by itself?