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The TH400 AMC case was used until the end of 1979 model production. The 232 cu in (3.8 L) I6 used in 1970-72 Jeep DJ "Postal Jeep" was backed up by the Borg-Warner T-35 3-speed automatic. At the time of the acquisition, Kaiser-Jeep was using a GM 2-speed Powerglide transmission in the DJ-5A (with the GM-sourced 2.5L I4).
Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors.These transmissions mate a three-element turbine torque converter to a Simpson planetary geartrain, providing three forward speeds plus reverse.
Hydramatic transmissions were ultimately replaced by a new three-speed torque converter automatic transmission called Turbo-Hydramatic in 1964 and 1965, whose design was more similar in principle to the Chrysler TorqueFlite and the '51 Borg-Warner-designed Ford Cruise-O-Matic than the fluid coupling Hydra-Matic the "Turbo" replaced.
Not only was the transmission shifting to a very much higher range ( 2.93 to 1.56, but it was also simultaneously emptying the fluid coupling and making a mechanical lock-up. The wide gap in the reduction ratio between first and second gears combined with the direct mechanical connection to the engine to create a shift that could be firm enough ...
1976: Radiator (AMC Matador), engine (Chevy 350 V8 2-barrel carb, cylinders were over-bored, requiring larger pistons and rings), transmission (TH 400: Turbo Hydra-Matic), differential (Spicer 44), front lower A-frame (Ford 56 Thunderbird), front upper A-frame (63 Lincoln Continental), steering was rear drag link until 1980, pitman arm bushing ...
Optional transmissions during the first-generation model run included the two-speed "Powerglide" automatic transmission, and a four-speed manual, available with any engine. [10] A three-speed "Turbo Hydra-Matic 350" automatic became available on most V8s starting in 1968. [11] The optional automatic for SS 396 cars was the three-speed Turbo 400 ...
A T-18/T-18a four-speed manual gearbox was standard for all years, while through 1979 the General Motors' Turbo-Hydramatic TH400, more commonly fitted to 3/4- and 1-ton trucks rather than SUVs, was optional. For comparison, GM’s own SUV, the Chevy Blazer, used the TH350 automatic. After 1979, the TH400 was replaced by the Chrysler TorqueFlite ...
The delay box acts as an on-board timer for the transbrake (from transmission brake). A transbrake is a part of a racing automatic transmission used in drag racing, and are not found in manual transmissions. The electronic timer is packaged in a metal enclosure when sold to drag racers, thus the slang term delay box.