Mainshaft Gear

The TH350 mainshaft in the automatic transmission is one of the three shafts present in the unit, alongside the countershaft and idler shaft. It extends outside the case of the transmission in two directions: the input is toward the engine and the output towards the rear axle, at least in rear wheel drive vehicles. In front wheel drive the engine and transmission are mounted transversely with the differential being part of the transmission unit. The gears and clutch ride on the this shaft, the gears turning freely until they are engaged by the clutch. Monster has both the input shaft and the output shaft available below.
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350, 350C input shaft. Will fit years from 1969 - 1979. Monster Transmission provides transmission parts for all transmission year, make, and models.
$49.95
A Brand New 350, 350C output shaft. Will fit years from 1969 - 1986. Monster Transmission provides transmission parts for all transmission year, make, and models.
$124.15 $88.68
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