The four-speed Turbo Hydra-Matic 700R4 was introduced for the 1982 model year for use in Chevrolet/GMC vehicles. In 1990, the Turbo Hydra-Matic 700R4 was renamed the 4L60.
The tailshaft housing is held onto the main case by four bolts (the bolt spacing is similar to the THM350), and uses a square-cut o-ring seal, and not a gasket. The typical width of this transmission where it bolts to the engine is 20 in (51 cm) overall. From the engine/trans mating surface to the cross member mount bolt is 22.5 in (57 cm), and engine/trans surface to output shaft housing mating surface is 23.375 in (59.37 cm) overall, with the tail shaft housing typically measuring 7.625 in (193.7 mm). External dimensions are similar to a THM350 with a 9-inch tailhousing found in Chevrolet/GMC long wheelbase truck/vans and 1971-76 B-bodies (Bel Air, Impala, Caprice).
Gear ratios: 1st 3.059:1, 2nd 1.625:1, 3rd 1.00:1, 4th 0.696:1, Reverse 2.29:1
Dynamic Racing Transmissions offers the TH700-R4 as an upgraded unit for street/strip use making it perfect for street machines and street rods wanting the added convienence of overdrive.
DYNAMIC builds the very best racing automatic transmissions anywhere!
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