THM250 Transmission parts
Transmission general data
|Number of gears||Transmission Type||Drive||ATF (full capacity) L||ATF (change) L||ATF type (recommended)|
The automatic gearbox THM250 is based on the THM350. This gearbox was released in 1974 and was applied in Chevrolet cars. The THM250 was developed and designed by GM as a part of Turbo Hydra-Matic family of automatic gearboxes. When taking into consideration the internal structure of the gearbox, the THM250 is very similar to THM350, apart from the intermediate clutch package with a band adjuster.
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Overhaul Kit | Friction Kit | Friction | Steel Plate | Steel Kit | Band | Solenoid Kit | Solenoid EPC | Solenoid TCC | Pump | Shaft | Drum | Valve body | Torque converter | Hub | Piston | Piston Kit | Planetary Gear | Filter | Gasket | Bushing | Seal | Bearing | Pressure Plate | Stator | Differential | Retainer | Inhibitor Switch | Instruction manual | TOOLS & ACCESORIES | Sensor
Generally, the THM250 was attached to small displacement engines. In 1976 this gearbox was taken out of production and was replaced by the light-duty THM200 transmission. However, the THM250 reemerged in 1979 as the THM250-C as a result of numerous issues withTHM200/200C. The 250C version had a reduced weight thanks to the use of a central gear shell applied the THM350, but with three holes to decrease flywheel mass and the low/reverse piston with eight notches.