Editing General Motors transmissions (section)
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===4L60E=== 4L60E is an electronic shifted and pressure controlled version of the 700R4/4L60 transmission. Introduced 1993 with the GM truck lineup (GMT400 trucks, G-series vans, M/L van (Astro/Safari), and GMT325 (S-series including the 1993 Typhoon). *Early 4L60E resembles the non-electronic 4L60/700R4 but does not have a governor assembly; RH side of transmission case has a green plug which is the main electrical connector. *1995-'97 production 4L60E has a PWM solenoid added to the valvebody - produced until 1997. **Some 1996-'97 GMT400s will have the early 4L60E with some overlap since the second design was initially used with the Vortec 4.3L which had a redesigned oil pan that bolts to the transmission bellhousing. Second design 4L60E introduced in 1996. First use was with 1996+ Vortec 4.3L used with the GM truck/van line. Produced until the 2005 model year when the S-series was phased out. *Has a removable bellhousing. *Tailhousing has six bolts. Third design 4L60E introduced in 1997. Replaced the second design where this variant is known as the LSx 4L60E (includes the 4L65 and 4L70).*First used with the fifth generation (C5) Corvette behind the LS1. *Has a 7 bolt bellhousing and longer input shaft. *When used with the 4.3L the crankshaft pilot was deepened to 1.410" - this also included a redesigned flexplate.
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