Editing TH400 rebuild tech

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=Rebuilding the T-400=

===Clearance in clutch packs:===

*Direct and forward clutch drums:

.050 to .080 in each drum works well with 5 frictions
Typically the thicker steel plates are used in the direct clutch drum. These can be mixed with thinner steels used in forward drum when setting clearance.
Try to maintain thicker steels in the direct clutch drum.  Thicker steels take the heat of shifting better.

*Intermediate clutch pack:

.040 to .060 clearance in the intermediate clutch with 3 frictions.
Always use a thicker snap ring .095 - .100 to retain the pressure plate

==Shift modifications==
*Valve body
insert photos and instructions

*Full manual shift modifications

FULL manual shifts means just that. You must move the shifter for every shift up or down. NO Automatic shifts 

There are two steel governor fluid tubes out the rear of the main valve body.  Remove these tubes.  Plug the holes in v-body. 3/8 x 16 tap and set screws work. Use liquid thread locking chemical

[[image:400v-body6.jpg]]
 
A new hole in the proper place needs to be drilled (.110) to loop the governor fluid. Check photos here for location

[[image:400v-body-7.JPG]]







[[Category:Transmission]]
[[Category:Undeveloped articles]]