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400/Turbo-Hydramatic 400(3L80)

The Turbo Hydramatic 400 was first introduced for the 1964 model year under the name "Turbo Hydra-Matic" in Cadillacs and "Super Turbine" in Buicks. The following year, application expanded to Oldsmobile and Pontiac and to some full-sized Chevrolets. Many of the Buick, Cadillac, and Oldsmobile THM400s produced between 1964-67 were equipped with a Switch-Pitch Torque converter variable-pitch Stator (turbine), which is sought after by collectors and drag racers. These can be identified outside the vehicle (with the torque converter removed) by a narrow front pump spline. Externally the switch pitch version has two electrical connections, where the non-switch pitch THM400 has only one. GM used a Switch Pitch torque converter in the Buick twin turbine Dynaflow transmission between 1955–1963 and the Super Turbine 300 two speed transmissions used by Oldsmobile Pontiac, and Buick divisions between 1964-1967.
TH400 Transmission Bands
TH400 Transmission Bands, High Performance and Stock
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The Every Buddy, Spring Compressor, Every Buddy (All-in-one), (w/legs and base) 24
Spring Compressor, Every Buddy (All-in-one), (w/legs and base) 24"
Price: $655.99
Spring Compressor, Every Buddy (All-in-one), (w/legs and base) 24"
All-In-One Automatic Transmission Spring Compressor for taking drums apart and low reverse spring sets out of cases
Valve Body W/Solenoid Transbrake Aluminum Billet TH400
Valve Body W/Solenoid Transbrake Aluminum Billet TH400
Price: $574.80
Valve Body W/Solenoid Transbrake Aluminum Billet TH400
new billet aluminum transbrake valve body for TH400 transmissions is designed entirely for racing. The aircraft grade aluminum is lighter than OEM steel versions, and the solid design is more rigid than the veined OEM design, improving strength. Most impo
GMCTH400ShiftLeverShaft
Shift Lever Shaft 400 (65-98), 4L80E (91-94 Short Version)
Price: $110.99
Shift Lever Shaft 400 (65-98), 4L80E (91-94 Short Version)
Shift Lever Shaft 400 (65-98), 4L80E (91-94 Short Version)
unavailable
GM, TH400, 3L80, Friction & Steel Kit, 65-98 Intermediate (.062" Tan Frictions, .076" Steels)
Price: Image may not reflect actual Kit
GM, TH400, 3L80, Friction & Steel Kit, 65-98  Intermediate (.062" Tan Frictions, .076" Steels)
GM, TH400, 3L80, Friction & Steel Kit, 65-98 Intermediate (.062" Tan Frictions, .076" Steels)
unavailable
Extension Housing, 4" Truck Bolt-On Large (34074) Rear Seal (65-98)
Price: $75.99
Extension Housing, 4" Truck Bolt-On Large (34074) Rear Seal (65-98)
Extension Housing, 4" Truck Bolt-On Large (34074) Rear Seal (65-98)
Gasket & Seal Kits (w/o Rings & Seals), 400 (65-98)
Gasket & Seal Kits (w/o Rings & Seals), 400 (65-98)
Price: $60.99
Gasket & Seal Kits (w/o Rings & Seals), 400 (65-98)
Gasket & Seal Kits (w/o Rings & Seals), 400 (65-98)
 TH400 Locking Dipstick - Buick, Olds, Pontiac
Dipstick TH400 - (Accomodates shield) -BTE
Price: $32.15
Dipstick TH400 - (Accomodates shield) -BTE
Dipstick TH400 - (Accomodates shield) -BTE
Clutches Direct Friction TH400
Clutches Direct Friction TH400
Price: $23.94
Clutches Direct Friction TH400
Direct friction clutch pack for TH400 transmissions
PowerPack, TH400, GM, Alto Red Eagle, Forward Clutch 64-95
PowerPack, TH400, GM, Alto Red Eagle, Forward Clutch 64-95
Price: $129.99
PowerPack, TH400, GM, Alto Red Eagle, Forward Clutch 64-95
PowerPack, TH400, GM, Alto Red Eagle, Forward Clutch 64-95
Torque Race Converter 11
Torque Race Converter 11"
Price: $1,558.80
Torque Race Converter 11"
11" race torque converter is designed for maximum horsepower applications.
Torque Race Converter 10
Torque Race Converter 10"
Price: $1,170.00
Torque Race Converter 10"
10" race torque converter is designed for most applications over 565 cubic inches making between 900 to 1000 horsepower.
Torque Race Converter 8
Torque Race Converter 8"
Price: $1,128.00
Torque Race Converter 8"
8" race torque converter is designed for most applications under 565 cubic inches.
Stall Converter, TH350, TH400, GM, 3500-4000
Price: $950.99
Stall Converter, TH350, TH400, GM, 3500-4000
GM TH 350/400 - 3500-4000 Stall Converter
Stall Converter, TH350, TH400, 4000-4500
Price: $950.99
Stall Converter, TH350, TH400, 4000-4500
GM TH 350/400 - 4000-4500 Stall Converter
Stall Converter, TH350, TH400, GM, 4500-5000
Price: $950.99
Stall Converter, TH350, TH400, GM, 4500-5000
GM TH 350/400 - 4500-5000 Stall Converter
Stall Converter, TH350, TH400, 5000-5500
Price: $950.99
Stall Converter, TH350, TH400, 5000-5500
GM TH 350/400 - 5000-5500 Stall Converter
Stall Converter, TH350, TH400, GM, 2500-3000
Price: $850.99
Stall Converter, TH350, TH400, GM, 2500-3000
GM TH 350/400 - 2500-3000 Stall Converter
Stall Converter, TH350, TH400, GM, 3000-3500
Price: $850.99
Stall Converter, TH350, TH400, GM, 3000-3500
GM TH 350/400 - 3000-3500 Stall Converter
GMC Case, Chevy (6 Check Ball Type) 4wd 6 Bolt Dust Cover 77-90
GMC Case, Chevy (6 Check Ball Type) 4wd 6 Bolt Dust Cover 77-90
Price: $750.99
GMC Case, Chevy (6 Check Ball Type) 4wd 6 Bolt Dust Cover 77-90
GMC Case, Chevy (6 Check Ball Type) 4wd 6 Bolt Dust Cover
Transm. Changeover Kit, 700-R4 to 400 (4wd) (Blazer, P/U Suburban 4.3L & V8) (85-Up)
Adapter, Changeover Kit, 700-R4 to 400 (4wd) (Blazer, P/U Suburban 4.3L & V8) (85-Up)
Price: $620.99
Adapter, Changeover Kit, 700-R4 to 400 (4wd) (Blazer, P/U Suburban 4.3L & V8) (85-Up)
Adapter, Changeover Kit, 700-R4 to 400 (4wd) (Blazer, P/U Suburban 4.3L & V8) (85-Up)
Intermediate Band Apply Pin Gauge (82-Up)
Intermediate Band Apply Pin Gauge (82-Up)
Price: $500.99
Intermediate Band Apply Pin Gauge (82-Up)
Intermediate Band Apply Pin Gauge (82-Up)
700-R4 (4X4) to TH400, GMC Transfer Case Adapter Block and Output Shaft 82-Up
Adapter Block, GM 400 transmission, ('85-up) to 208 transfer case and Output Shaft 82-Up
Price: $300.99
Adapter Block, GM 400 transmission, ('85-up) to 208 transfer case and Output Shaft 82-Up
700-R4 (4X4) to TH400, GMC Transfer Case Adapter Block and Output Shaft 82-Up
Combo Kit, TH400, GM, Alto Red Eagle Master Kit
Price: $299.99
Combo Kit, TH400, GM, Alto Red Eagle Master Kit
Combo Kit, TH400, GM, Alto Red Eagle Master Kit
TH400 Case, Chevy (6 Check Ball Type) 65-98
TH400 Case, Chevy (6 Check Ball Type) 65-98
Price: $280.99
TH400 Case, Chevy (6 Check Ball Type) 65-98
TH400 Case, Chevy (6 Check Ball Type) 65-98
GM 425 Front Wheel Drive Transaxle Low Profile Transmission Pans
Price: From $255.44 to $363.51
GM 425 Front Wheel Drive Transaxle Low Profile Transmission Pans
Fits 1966-1978 Olds Toronado, 1967-1978 Cadillac Eldorado. Volume: Stock.
Valve Body Full Manual TH400
Valve Body Full Manual TH400
Price: $249.42
Valve Body Full Manual TH400
This TH400 valve body is designed for full manual operation: the transmission remains in the same gear as the shifter.
Master Overhaul Kit TH400
Master Overhaul Kit TH400
Price: $225.99
Master Overhaul Kit TH400
Master overhaul kits contain everything needed for a transmission rebuild: clutches, gaskets, seals, and bushings.
Universal Pump Alignment Tool
Universal Pump Alignment Tool
Price: $222.75
Universal Pump Alignment Tool
Works with all pumps.This tool comes with a chart, placing the pin in the correct numbered hole for that type transmission.
Reprogramming Kit,TH400, GMC, Competition Only, Stick Shift Full Control (Transgo®) 65-89
Reprogramming Kit,TH400, GMC, Competition Only, Stick Shift Full Control (Transgo®) 65-89
Price: $210.99
Reprogramming Kit,TH400, GMC, Competition Only, Stick Shift Full Control (Transgo®) 65-89
Reprogramming Kit,TH400, GMC, Competition Only, Stick Shift Full Control (Transgo®) 65-89
Valve Body Super Street TH400
Valve Body Super Street TH400
Price: $208.50
Valve Body Super Street TH400
This TH400 valve body is designed to improve shift quality and overall operation.
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