1) GM (USED) OEM 8684198 5 Hydra-Matic 4L80E TRANSMISSION w/ TRANSFERCASE FROM Silverado 4

Shipping From Warehouse Location: D

8684198 5

GMC Hydra-Matic 4L80E TRANSMISSION 

FROM 1994 CHEVY 4X4 Silverado

FITS: 91-97 

164 k miles

FITS 350 & 454 cu in

Chevrolet 2500 3500

WITH TRANSFER CASE

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1) GM 8684198 5 Hydra-Matic 4L80E TRANSMISSION w/ TRANSFERCASE FROM Silverado 4X4 (used) Fits: Chevrolet 2500 3500 Euro All Parts

GMC Hydra-Matic 4L80E TRANSMISSION 

FROM 1994 CHEVY 4X4

FITS 350 & 454 cu in 

WITH TRANSFERCASE

The 4L80E Transmission. This cryptic description is GM's way of saying this is an automatic transmission with four forward speeds designed for longitudinal (i.e. RWD) use. The "80" references higher torque capacity (compared with a 60, for example), while the "E" defines this as an electronically controlled transmission.

4L80E     32     30-1/2     4-3/8
Gear     Ratio
First     2.48
Second     1.48
Third     1.00
Fourth     0.75
Trans     Weight w/o converter     
4L80E     187 pounds         
4L60E     160 pounds
   

The 4L80-E (and similar 4L85-E) was a series of automatic transmissions from General 

Motors. Designed for longitudinal engine configurations, the series included 4 

forward gears. It was an evolution of the Turbo-Hydramatic 400, first produced in 

October, 1963. 4L80-Es were optioned only in Chevrolet/GMC pickups, vans, and 

commercial vehicles, and the Hummer H1.

4L80-E

A Hydra-Matic 4L80 transmission at the Ypsilanti Automotive Heritage Museum

The "MT1" 4L80-E is able to handle engines with up to 440 ft·lbf (597 N·m) of 

torque. Final drive ratios include 3.42, 3.73, and 4.10.

The 4L80E was rated to max GVWR of 18,000 (Axle and vehicle dependent)[3] 

Applications:

1991–2013 Chevrolet C/K/Chevrolet Silverado/GMC Sierra V8

1991–2013 Chevrolet/GMC Suburban/GMC Yukon

1995–2003 Chevrolet Tahoe/GMC Yukon

1991–2002 Chevrolet Van/Chevrolet Express/GMC Savana

2002–2006 Chevrolet Avalanche V8 8.1L

The 4L80E is the successor to the Turbo Hydramatic 400 transmission. The 4L80E came 

thirty years later in the 1990s. Doctor Steve of Doctor Steve’s Transmission Clinic 

told us that, “There isn’t another transmission that has had the same design in 

production for 50 years!” These are four-speed transmissions outfitted with four 

forward gears and one reverse gear, are electronically controlled, and have a 25% 

overdrive gear.

4L80E Specifications

The 4L80E has a max torque rating of 440 lb.-ft. of torque, giving it a max load 

capacity of 18,000 pounds. The gearing to move such a heavy load is a 2.48 first 

gear, 1.48 second, 1.00 third, and 0.75 overdrive.

These transmissions can be found behind 4.3 to 8.1-liter gas engines and 6.5 to 6.6

-litre diesel engines. They are electronically controlled, unless modified, and the 

housing itself is die cast aluminum. A few stock-applications include the Chevrolet 

Avalanche, Silverado (2500HD and 3500 series), Express vans, and Suburbans. They are 

also installed in GMC Sierras, Yukon XLs, and Savana vans. Some Hummers also ran 

them as well.