GM 5L40-E transmission

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5L40-E/5L50
Manufacturer	General Motors
Production	2004–
Predecessor	4L30-E 4L60-E/4L65-E
Successor	6L50
Class	5-speed longitudinal automatic transmission
Similar	Chrysler 545RFE Ford 5R55E ZF 6HP26

The 5L40-E (and similar 5L50) are a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series includes 5 forward gears and is used in the GM Sigma platform vehicles from Cadillac, as well as the Pontiac Solstice and Holden Commodore.

The electronically controlled transmission includes an automatic overdrive with a torque converter clutch. It is assembled in Strasbourg, France.

The 5L40/50 series will be replaced starting in 2007 with the 6L50 six-speed.

1 5L40-E
2 5L50
3 See also
4 Other links

[edit] 5L40-E

The 5L40-E is available in either "M82" (rear-wheel drive) or "MX5" (all-wheel drive) versions. It is able to handle vehicles up to 4000 lb (1814 kg) GVWR. The final drive ratio is 3.42:1, 3.73:1, or 3.91:1. The 5L40-E is designed for 1.8–3.6 L engines with a maximum of 250 ft·lbf (340 N·m) of torque.

Gear ratios:

1	2	3	4	5	R
3.42	2.21	1.60	1.00	0.75	3.02

Applications:

3.42:1 M82
- 2004–2006 Cadillac CTS RWD
- 2005–2006 Cadillac STS RWD
3.73:1 M82
- 2004–2006 Cadillac SRX RWD
3.91:1 M82
- 2006 Pontiac Solstice
- 2007 Saturn Sky
2.92:1 M82
- 2004–2007 Holden VZ Commodore RWD
- 2006- Holden VE Commodore RWD
- 2008- Pontiac G8
3.42:1 MX5
- 2004–2006 Cadillac CTS AWD
- 2004–2006 Cadillac STS AWD
3.91:1 MX5
- 2004–2006 Cadillac SRX AWD

[edit] 5L50

The 5L50 is able to handle vehicles up to 5000 lb (2268 kg) GVWR. Final drive ratios include 2.93:1 and 3.23:1. The 5L50 can handle up to 311 ft·lbf (422 N·m) of torque.

Gear ratios: