I continue the build, picking up with the intermediate clutch then assemble the forward, cost clutch and overdrive clutch drums. From there, I tackle the pump, assembling it in stages and test the stator support on the Sonnax vacuum test machine to validate all the valve trains are adequately sealing.
Lastly, I install everything into the case for the final time, closing Part 2 out with a front end play check and adjustment.
Note - I break up the pump assembly process to accommodate the testing but decided to film the assembly of the overdrive clutch piston/housing assembly prior to pump assembly to tidy up the bench...You can assemble all the non-rear gear train sub-assemblies in any order that you'd prefer. This is just the order I did things with this particular transmission.
Table of Contents:
Intermediate Clutch Set-up: 0:00
Direct Drum and Int Band Install: 27:18
Forward, Coast Clutch, Input Shaft: 34:51
Pump Assy and Vacuum Testing: 1:05:11
Overdrive Clutch Housing: 1:46:30
Input Shaft-OD Planet Measure: 2:02:00
Pump Final Assy: 2:04:07
Forward and Coast Clutch Clearance: 2:08:26
Front Case Assembly and End Play: 2:19:30
- https://atoc.ru/uploads/manual/5fad1cea696b1.pdf
Looking for a 4L80E high performance rebuild?
- Check out my other series here:
https://www.youtube.com/watch?v=cWzYbhG3osA