GM TH – 400
GM TH-400 Automatic Transmission
Gear Ratios:
Standard
Optional
1st = 2.48:1
1st = 2.75:1
2nd = 1.48:1
2nd = 1.57:1
3rd = 1:1
3rd= 1:1
Features:
• Direct Drum with 34 Element Sprag Assembly
• Max Volume Pump with New Boost Valve and Spring
• Max Performance Frictions
• Wide High Energy Intermediate Band
• 4 Clutch Intermediate Stack up with Heavy Duty Snap Ring
• High Energy Low/Reverse Band
• Max Performance Manual/Automatic Valve Body
• New Bushings, Washers, and Bearings
• New Kickdown Solenoid & Electrical Connector
• New Low Roller Assembly
• Re-calibrated Governor & New Adjustable Modulator
• New Chrome Steel Pan
• 700 Hp
Ordering Information:
Part No.
Description
MP1400S
Street/Strip (Chevy) Transmission
Optional Upgrades & Accessories:
Part No.
Description
MP400-01
300M Billet Input Shaft
MP400-02
Deep Aluminum Pan
MP400-03
Transbrake
MP400-04
2.75 Low Gear Set
MP400-05
300M Billet Main Shaft
MP400-06
Forward Manual Valve Body (PRN321)
MP400-07
Reverse Manual Valve Body (PRN123)
MP400-08
Steel Forward Hub
MP400-09
Heavy Duty Center Support

