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GM 4L80E reverse servo pin measuring tool how to also works on TH-400 and 4L85E
Hi there!
In this video I demonstrate how to make a tool to measure the travel of the reverse servo on a GM 4L80/85 or TH400 auitomatic transmission. The tool is not my design, just demonstrating how you can make your own.
Recommended clearance of reverse band is 3/16" (.1875").
Thanks for watching, if you like the video please like and comment.
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