5R55S, 5R55W Automatic Transmission Service Group - ATSG Techtran rebuild manual. Covered models:5R55S, 5R55W 5 speed automatic. The 5R55W and 5R55S started production in 2002. This 5 speed automatic transmission was in both 2wd and 4wd applications with V6 and V8 engine options.
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