General Motors Transmission Torque Specs
Transmission torque specs follow the actual transmission model, not the badge on the car or whatever somebody called the gearbox fifty years later. Find the right unit before grabbing the wrench.
Quick Jump
Automatic Transmissions
Aluminum Powerglide
Aluminum Powerglide torque values and model-specific fastener or adjustment procedures.
TH350
TH350 torque values and model-specific fastener or adjustment procedures.
TH400
TH400 torque values and model-specific fastener or adjustment procedures.
↑ Back to the Top, Before “Good and Tight” Breaks Something Else
Manual Transmissions
SM318 3-Speed
SM318 torque values and model-specific case, cover, retainer, linkage, and installation fasteners.
SM319 3-Speed
SM319 torque values and model-specific case, cover, retainer, overdrive hardware, linkage, and installation fasteners.
Borg-Warner Super T10
Borg-Warner Super T10 torque values and model-specific fastener or adjustment procedures.
Muncie M20 / M21 / M22
Muncie M20, M21, and M22 torque values and model-specific fastener or adjustment procedures.
Saginaw 3-Speed
Saginaw 3-Speed torque values and model-specific fastener or adjustment procedures.
Saginaw 4-Speed
Saginaw 4-Speed torque values and model-specific fastener or adjustment procedures.
↑ Back to the Top, Before “Good and Tight” Breaks Something Else
Bottom Line
Use the page for the transmission on the bench. Torque values and adjustments are model-specific; close enough doesn’t keep threads or parts alive.
↑ Back to the Top, Before “Good and Tight” Breaks Something Else