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GM TH700R4 & Later 4L60/65/70E Transmissions

TH700R4, 4L60E, 4L65E, 4L70E Transmission Specs & Ratios

The TH700R4 was introduced to replace the TH350 for the 1982 model year. An increase in demand for fuel efficient vehicles directed General Motors to retire their light duty 3 speed in favor of an overdrive 4 speed unit. The transmission was a perfect compliment to the company's fuel sipping 6.2L diesel, which debuted the same year. It took GM a few years to get the initial kinks worked out of the transmission, and the general consensus is that the post 1987 transmissions were the most reliable. In 1990, the transmission was renamed the "4L60", which stood for 4 speed, longitudinally mounted, and a strength designation of 60 (some believe the 60 refers to a maximum GVWR of 6,000 lbs, but the transmission has been used in applications rated up to 8,600 lbs). In 1993, the transmission was converted to electronic controls. Subsequent versions of varying strength followed; 4L60E, 4L65E, and 4L70E.

TH700R4, 4L60/65/70E Ratios






3.059 : 1

1.625 : 1

1.00 : 1

0.696 : 1

2.294 : 1

TH700R4, 4L60/65/70E Specs


General Motors TH700R4, 4L60E, 4L65E, 4L70E


4 speed automatic overdrive transmission



Model Years/Applications:

1982 - 1998 Chevrolet/GMC K10/K1500, C10/C1500, pickups & Suburban (1/2 ton only)

Case Material:

Die cast aluminum

Max Input Torque:

4L60 (M30)

350 lb-ft

4L65 (M32)

380 lb-ft

4L70 (M70)

400 lb-ft


8,600 lbs


15,500 lbs


~200 lbs dry

Fluid Capacity:

8.8 to 11.4 quarts depending on application

ATF Type/Spec:

ACDelco DEXRON VI automatic transmission fluid

Transmission Filter P/N:

1982 - 1992

ACDelco 8657926, WIX 58897

1993 - 1997 (shallow pan)

ACDelco TF289, WIX 58904

1993 - 1997 (deep pan)

ACDelco 24236799, WIX 58847

1998 (10/01/1997 +)

ACDelco 24208576

Additional Info:

• 4L60E - RPO code "M30"
• 4L65E - RPO code "M32"
• 4L70E - RPO code "M70"
• Electronic transmission controls introduced for the 1993 model year; electric shift solenoids replaced hydraulic shift logic
• 1997+ model year 4L60/65/70E transmissions feature a different case style than older units, subsequently creating the divide between what is considered an "early style" and "late style" transmission
• The TH700R4 transmission was renamed the 4L60 beginning the 1990 model year; current parts catalogs may refer to the 700R4 as a 4L60