stutaeng
I'm Awesome
There's a saying that GM designed these units to be rebuilt in your driveway. I think's that a bit too optimistic, LOL.
I'm no expert by any means. I have only rebuilt one 4L80e (still haven't installed it.) I used the rebuild kit and the training video by Transmission Bench and the ATSG manual, and watched as many videos on YT on rebuilding. Look here: https://transmissionbench.com/4L60Eparts.html
$439 for a complete overhaul kit and training video seems like a decent deal. Barring severe damage to a drum, planetaries or pump, I would just think you will need a bushing it. Edit: looks like they also include a bushing kit.
The only advice I can give is to have plenty of workspace to keep everything organized. Have a second area to clean and inspect everything, at least twice. Keep all the subassemblies together. Reassemble the subassemblies (valve body, pump, main drums, planetary gearsets) as you go along. I think taking the subassemblies apart just to see if you can get it back together with confidence is a big part of the process.
Good luck.
I'm no expert by any means. I have only rebuilt one 4L80e (still haven't installed it.) I used the rebuild kit and the training video by Transmission Bench and the ATSG manual, and watched as many videos on YT on rebuilding. Look here: https://transmissionbench.com/4L60Eparts.html
$439 for a complete overhaul kit and training video seems like a decent deal. Barring severe damage to a drum, planetaries or pump, I would just think you will need a bushing it. Edit: looks like they also include a bushing kit.
The only advice I can give is to have plenty of workspace to keep everything organized. Have a second area to clean and inspect everything, at least twice. Keep all the subassemblies together. Reassemble the subassemblies (valve body, pump, main drums, planetary gearsets) as you go along. I think taking the subassemblies apart just to see if you can get it back together with confidence is a big part of the process.
Good luck.
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