| Gm 4l60-e Transmission |
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The 4L60-E (and similar '''4L65-E''') is a series of Automatic Transmission s from General Motors . Designed for Longitudinal Engine configurations, the series includes 4 forward gears. It is an evolution of the Turbo-Hydramatic 700R4 , originally produced in 1982 . The 4L60-E and 4L65-E are built at Toledo Transmission in Toledo, Ohio and have also been built at Romulus Transmission in Romulus, Michigan and Ramos Arizpe, Mexico . The two transmissions are differentiated mainly by the number of Pinion Gear s in their Planetary Gear sets: The 4L60-E has four, while the heavy-duty 4L65-E has five. Other elements of the 4L60-E design were strengthened when the 4L65-E was introduced, but these were incorporated into the 4L60-E in 2002. Gear ratios: 4L60-E The THM700 was renamed "4L60" (RPO M30) following the new General Motors naming convention, when the electronic version, 4L60-E, was phased in. This happened in 1993 for trucks, vans, and SUVs, and 1994 for rear wheel drive passenger cars. Around 1996 , a bolt-on bellhousing was phased in (along with a six-bolt tailhousing) when the transmission was bolted behind an inline four cylinder or the Vortec engine family. The 4L60-E is rated to handle up to 360 ft·lbf (488 N·m) of torque. Applications:
4L65-E An updated 4L60-E, the 4L65-E (RPO M32), was phased in around the 2003 model year when coupled behind the 6.0 Vortec. Five-pinion planetaries, along with a modified drum/input shaft assembly, were improved to withstand up to 380 ft·lbf (515 N·m) of torque. Applications:
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