700R4 vs. 4L60. While rear-wheel-drive vehicles maintained the 700R4, some vans, pickups, and SUVs were treated to a new iteration of the transmission in 1990 called the 4L60.

The 700R4, also known as TH700R4, is a General Motors four-speed automatic transmission that was used from 1982 to 1993. Internally called a Hydra-Matic MD-8, it was used in front-engine/rear ...

The 700R4 transmission has had some issues over its 12-year run. Early versions produced before 1984 had a 27-spline input shaft, which was prone to break. This was remedied with an upgrade to a ...