Common questions

Is the GM 700R4 a heavy duty transmission?

Is the GM 700R4 a heavy duty transmission?

The 700R4 was a pretty tough transmission, but not quite in the class of the TH400. GM needed a heavy-duty automatic overdrive. GM used as many TH400 parts and designs as possible in the 4L80E, but the added overdrive gear would require an extra gearset and slightly longer (~1-1/2″) case.

How much does a GM 4L80E automatic transmission weigh?

The transmission typically accepts a 6.3 quart fill. It features a dry weight of 254 lbs. and can weight up to ~268 lbs. full. Like earlier automatics, the 4L80 features one line pressure tap available for testing and diagnostic purposes.

When did GM start making their own automatic transmission?

The GM Hydra-Matic was a success and installed in the majority of GM models by 1950. Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone. All of GM’s early automatic transmissions were replaced by variants of the Turbo-Hydramatic by the 1970s.

When did the GMC 4L85 transmission come out?

The 4L85 transmission was introduced in 2002. Some of the differences included a 5-pinion output gearset and 5-pinion reaction gearset. Though not a transmission development change, in 2006 GM specified a new transmission fluid formulation and required its use (for warranty) in the 4L80 series.

What kind of transmission does a GMC Geo have?

Chevrolet/GMC/Geo Model Years Transmission Type Engine Type/Size Transmission Model Astro 1989-1992 TH700-R4/4L60 ASTRO/SAFARI 1995-2003 4 SP RWD/AWD V6 4.3L 4L60E AVALANCHE 2/3/2004 4 SP RWD/4X4 V8 5.3L 4L60E AVALANCHE 2/3/2004 4 SP RWD/4X4 V8 8.1L 4L80E

How much does a GM 4L60E transmission weigh?

The 4L60E is rated to handle up to 360 ft⋅lb (490 N⋅m) of torque. It weighs 133 pounds without transmission fluid.

Where is the GM 4L60E Turbo Hydramatic transmission made?

The 4L60E is the electronically commanded evolution of the Turbo-Hydramatic 700R4, originally produced in 1982. The 4L60E and 4L65E are built at Toledo Transmission in Toledo, Ohio and have also been built at Romulus Transmission in Romulus, Michigan and Ramos Arizpe, Mexico.

What kind of transmission does a GM Astro use?

GM Transmission Applications Model Year Engine Trans Type Transmission Astro 1989-1992 TH700-R4/4L60 Astro 1993 – Up 4L60-E Astro Van, Safari 1995-06 V6 4.3L 4 Spd RWD/4X4 4L60E Avalanche 2001-03 V8 8.1L 4 Spd RWD/4X4 4L80E

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Ruth Doyle