400, 3L80

SK 400

SHIFT KIT® Valve Body Repair Kit
Fits all 400 1965-on

400-1&2

Reprogramming Kit™
With Gear Command™
Fits all 400 1965-on

400-3

Reprogramming Kit™
Manual Shift Control
Fits all 400 1965-on

400-PRO

Reprogramming Kit™
With Gear Command™
Fits all 400 1965-on

400 RK

Reverse Cushion Kit
Fits all 400 1965-on
Does not fit 4L80E

VBP-VAC

Vacuum Bypass Kit
Fits TH350/C, TH250/C, TH400, 3L80, TH375, C4, C5, C6
Also fits 4L60/65E when using 46-MOD and 4L80/85E when using 48-MOD