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!
Due to the limited supply of usable cores, we now require that you supply us with a core BEFORE the job is started.
