Chevrolet - STOCK 4L60E AND 4L65E AUTOMATIC TRANSMISSIONS

The stock 4L60E and 4L65E four-speed automatic transmission assemblies feature electronic control of shift points, shift feel, and torque converter clutch application.      Keys - gmtransmission, gmtransmissionpart

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GM AND GMPP TRANSMISSIONS NAVIGATION

GM Transmission Main Page
4L60 Remanufactured Performance Four-Speed Automatic	GM Stock Replacement T56 Six-Speed Manual
4L60E/4L65E Four-Speed Automatic	GM Performance Close Gear Ratio T56 Six-Speed Manual
4L85E Four-Speed Automatic	Transmission Parts Page

4L60E TRANSMISSIONS

12497318 - 4L60E Four speed rear-wheel-drive, electronically controlled, automatic overdrive transmission with a torque converter clutch.      This new 4L60E four-speed automatic transmission assembly features electronic control of shift points, shift feel and torque converter clutch application. The two-piece transmission case allows use behind GM engines that have a Chevrolet V8 bellhousing bolt pattern and produce no more than 370 lb-ft of gross engine torque. This gearbox features a 3.06 first gear ratio for great acceleration and a 0.70 overdrive fourth gear ratio improved fuel economy. The high stall torque converter produces a stall speed of approximately 2300 RPM behind most small-block engines. The output shaft does not contain provisions for a mechanical speedometer application. The production use of this transmission assembly was for the police package 350 Vortec powered Chevrolet Tahoe. For proper transmission operation for both carbureted and fuel injected applications a control module and wiring harness is also available separately. 4L60E gear ratios: 1st 3.059, 2nd 1.625, 3rd 1.000, 4th .0696, Reverse 2.294. Engine Range: 2.2L - 5.7L (M30) Maximum Shift Speeds: 1-2 6100 rpm (M30), 2-3 6100 rpm (M30), 3-4 6100 rpm (M30) Maximum Engine Torque: 360 lb-ft (M30) Maximum Gearbox Torque: 610 lb-ft (M30) Converter Size: 245mm, 280mm, 298mm & 300mm (M30), Diameter of torque converter turbine. Fluid Capacity (Approximate): Dry: 7.9L (8.4 qt) (with 245 mm converter) Case Material: Die Cast Aluminum Assembly Sites: Toledo, OH; Romulus, MI; Ramos, Mexico Technical Notes: Use with transmission controller P/N 12497316. (No core charge required on this transmission)

4L65E TRANSMISSIONS

24221888 - 4L65-E Four speed rear-wheel-drive, electronically controlled, automatic overdrive transmission with a torque converter clutch.      GM Hydramatic has baked even more technology enhancements into the automatic transmission line up with the new 4L65E. This transmission, the latest creation from GM Hydramatic Motorsports, is a four speed, offering all the latest heavy duty components to stand up to the power of the LS6-405 HP Corvette engines. Upgrades like induction hardened turbine input shafts, larger intermediate servo, an additional three-four clutch plate. All go toward accommodating higher engine power output. The 4L65E offers optimized performance, fuel economy and increase durability. This sate-of-the-art transmission features the latest heavy duty components and high tech-electronic controls. The advanced electronics controlling the LS6 engine also manages the 4L65E shift points, providing unparalleled performance and durability, P/N 24221888 also includes the torque converter. (No core charge required on this transmission) 4L65E gear ratios: 1st 3.059, 2nd 1.625, 3rd 1.000, 4th .0696, Reverse 2.294. Engine Range: 6.0L (M32) Maximum Shift Speeds: 1-2 5600 rpm (M32), 2-3 5600 rpm (M32), 3-4 5600 rpm (M32) Maximum Engine Torque: 380 lb-ft (M32) Maximum Gearbox Torque: 670 lb-ft (M32) Converter Size: 300mm (M32) (reference), Diameter of torque converter turbine. Fluid Capacity (Approximate): 10.8L (11.4 qt) (with 300 mm converter) Case Material: Die Cast Aluminum Assembly Sites: Toledo, OH; Romulus, MI; Ramos, Mexico Technical Notes: Use with transmission controller P/N 12497316. (No core charge required on this transmission)