How to Rebuild & Modify High-Performance Manual Transmissions (Workbench How to)
(as of Jan 22,2022 12:07:59 UTC – Details)
From the Publisher
How to Rebuild and Modify High-Performance Manual Transmissions breaks down the disassembly, inspection, modification/upgrade, and rebuilding process into detailed yet easy-to-follow steps consistent with SA Design’s other Workbench series books. The latest techniques and insider tips are revealed, so an enthusiast can quickly perform a tear-down, identify worn parts, select the best components, and successfully assemble a high-performance transmission. The techniques and theory you will learn will teach you how to understand and work on any manual transmission. ID information about casting numbers and history is covered as are shifters and clutch assemblies.
Transmission Assembly Tips
Typical kits sell for under 200 dollars and make a rebuild quite easy. Be aware that all kits are not alike, and kit parts have a great range of quality from very high to poor. It is best to ask what components come with the kit before making a purchase. Better companies offer support.
Borg Warner Transmissions
This is your basic early T10. It has a nine-bolt side cover and no external shifter shaft seals. BorgWarner used the same basic design for GM, Ford, and AMC cars. This is a T-10 from a GM car.
Unlike the Muncies and T10s, this extension actually holds the complete gear assembly. This design eliminates the mid plate bearing support and the extra parting line, so a stronger case is effectively built. It will not pull out, so don’t try to force it.
Shift the transmission into second gear, remove the seven side cover bolts, and remove the side cover. Don’t worry about the shift fork or shifter shafts coming out of the cover. If you are going to reuse them, make a note as to their positions.
High Performance Transmissions
Keisler Engineering modified the Tremec TKO 600 to incorporate a side-mount shifter so it could be used in older muscle car applications.
The bearing retainer and top cover are removed. The front bearing had exploded in this transmission, and all that was left of it was the inner race. This ruined the front bearing bore of the case.
The clutch drive plate will either be bolted or riveted to the lined surface. It is raised via stand offs to clear the sprung hub. The springs fit in the slots, which drive the plate. I’m removing the plate to expose the hub and springs.
A Guide to Shifters
This is Long Shifters’ high-tech verticalgated shifter. By pulling the lever up, the shifter is positioned with the top gate. Releasing the lever allows the springs to pull the shifter’s arm vertically down each gate and eliminates the need for a conventional H-pattern.
Theory and Operation
In the downshift mode, the slider is powered. In order for the slider to mate with the gear, it must index behind the gear. Whether you are upshifting or downshifting, a “blockout” condition can occur in which wear of the synchro assembly allows the ring and slider to meet point to-point. The arrow shows the direction the ring must take in order for the slider to continue on its path to locking on the gear.
Publisher : CarTech; 2nd edition (March 1, 2010)
Language : English
Paperback : 144 pages
ISBN-10 : 1934709298
ISBN-13 : 978-1934709290
Item Weight : 1.05 pounds
Dimensions : 8.5 x 0.38 x 11 inches