GM 4L60-E transmission

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4L60-E/4L65-E
Manufacturer	General Motors
Production	1992–
Predecessor	Turbo-Hydramatic
Successor	5L40-E/5L50
Class	4-speed longitudinal automatic transmission

The 4L60-E (and similar 4L65-E) is a series of automatic transmissions 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 gears in their planetary gearsets: 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:

1	2	3	4	R
3.06	1.63	1.00	0.70	2.29

[edit] 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. 1993-95 production 4L60-Es look similar to non-electronic 4L60s (including the 700R4) with the absence of a governor and throttle valve cable; an electronic plug was positioned where the TV cable once stood. Around 1996, a bolt-on bell housing 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.

The 4L60-E has a fatal design flaw in its valve body. There is a kit to fix this.

Applications:

Buick Rainier
Buick Roadmaster 1994–1996
Cadillac Escalade
Cadillac Brougham 1991-1992
Cadillac Fleetwood 1994–1996
Chevrolet Astro
Chevrolet Avalanche
Chevrolet Blazer
Chevrolet Camaro 1994–2002 (1990-1993 has the non-electronic model 4L60)
Chevrolet Caprice 1994-96
Chevrolet Colorado
Chevrolet Corsica
Chevrolet Corvette 1994–2004
Chevrolet Express
Chevrolet Impala SS 1994–1996
Chevrolet S-10
Chevrolet Silverado 1500-2500
Chevrolet SSR
Chevrolet Suburban
Chevrolet Tahoe
Chevrolet TrailBlazer
GMC Canyon
GMC Envoy
GMC Safari
GMC Savana
GMC Sierra 1500-2500
GMC Sonoma
GMC Yukon
GMC Yukon XL Denali
Holden Commodore (VR, VS, VT, VX, VY, VZ, VE) 1993–present
Holden Statesman (VR, VS, WH, WK, WL and WM) 1994–present
Hummer H2
Pontiac Firebird 1994–2002 (1993 has the non-electronic model 4L60)
Pontiac GTO 2004–2006

[edit] 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 higher capacity input housing and induction hardened input shaft assembly, were improved to withstand up to 380 ft·lbf (515 N·m) of torque. A new 300mm torque converter with improved higher-capacity internals was also introduced on select engine models.

Applications: