This video is part two of a three part series on the overhaul of the GM 8L90 transmission. In this video, I cover the assembly of all components, and how to perform the critical clutch pack measurements and transmission endplays. I also go through what's included in overhaul kits.
Here are the other videos in this series:
8L90 Overhaul - part one covers disassembly: • General Motors 8l90 Ov...
8L90 Overhaul - part three covers valve body: • General Motors 8L90 me...
8L90 Hydraulics theory and operation: • General Motors 8L90 hy...
8L90 Electrical theory and operation: • General Motors 8L90 el...
8L90 Torque Converter: • General Motors 8L90 to...
8L90 Rebuilding Particulars:
8L90 Modifications and Tuning:
Special thanks to Precision International, TransGo, and Sonnax for providing me with product to use in these videos. Also thanks to KB Cores and AA Midwest for providing me with a few 8L90 cores at a good price!
Video Contents:
0:00 Introduction
3:41 Overhaul Kits
9:49 C2 Piston Assembly
12:33 Gearset Installation
15:43 C2 Clutch Installation
16:38 C2 clutch clearance measurement
24:20 C1 clutch installation
27:42 input drum disassembly
35:37 C5 assembly
45:03 C4 clutch installation
46:03 Clutch clearance method results
47:03 C3 clutch overhaul
49:51 C3 clutch clearance
53:14 C4/C5 Housing Install
54:48 C3 Housing installation
57:51 Input shaft endplay
1:00:59 Air test
1:03:36 pulse accumulator
1:08:06 valve body install
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