TH400 & 4L80E Rear Band Adjustment

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carod
Posts: 143
Joined: Wed Aug 10, 2016 6:53 pm
First Name: Rod
Last Name: Roy
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Location: Calgary, Alberta

TH400 & 4L80E Rear Band Adjustment

Post by carod » Sat Feb 17, 2018 12:36 am

I just fuinished rebuilding a 4L80E and had to get the longest pin to get the rear band adjustment right.
The part number is 24202583. Years ago I was given a GM part number by transgo for a GM diff shim kit that works well for
adjusting the rear band clearence on a TH400. The shims fit on top of the piston and work well for adjusting band clearence.
I have used this method several times. I have forgot the part number, called transgo, and they do not seem to have the
shim kit number anymore as well. Does anyone have this GM shim kit number?
Regards
Rod Roy

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