End Play Issues on C6 Rebuild
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Mountain Pass
Joined: Mar 2025
Posts: 128
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End Play Issues on C6 Rebuild
I finished rebuilding my 73' C6 auto transmission only to find out I had zero endplay. I removed the selective washer on the pump just to test and then was getting a reading .035. Clearly something is wrong, but I can't figure it out. I took it all apart 3 times making sure everything was seated, but still keep getting the same issue.
Here are the details...
The only things that I replaced on the rebuild were:
- New thrust washers (all measured the same thickness)
- New steels and frictions (all measured proper clearance to snap rings)
- New bushings
- New transmission case (swapped my 73' case for a 74' due to cracks)
- Swapped out the sunshell because it was cracked.
- Used a new E40D roller sprag instead of the stock one.
I would love any thoughts on where I may have lost some clearance. Or common issues? I made sure all the thrust washers were in the correct spots as well.
Here are the details...
The only things that I replaced on the rebuild were:
- New thrust washers (all measured the same thickness)
- New steels and frictions (all measured proper clearance to snap rings)
- New bushings
- New transmission case (swapped my 73' case for a 74' due to cracks)
- Swapped out the sunshell because it was cracked.
- Used a new E40D roller sprag instead of the stock one.
I would love any thoughts on where I may have lost some clearance. Or common issues? I made sure all the thrust washers were in the correct spots as well.
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