4L80/4L80E
(FREE CONVERTER AND SHIPPING)
Installation and extended warranties available

4L80/4L80E
Installation and extended warranties available

All Mad Dog Transmissions are completely rebuilt and come with a Master Overhaul Kit which includes:

-all new lip seals
-all new gaskets
-all new Teflon rings
-new filter
-all new steels
-all new bushings
-all new Raybestos clutch discs
-all new sprags
-4140 Billet Hub

The 4L80/4L80E transmissions comes with a new force motor, new shift solenoids, new 3/2 downshift solenoid, new TCC solenoids, new pressure manifold and a special Sonnax valve that is specifically made for the GM code 1870, which is very common on these particular units.  

This 4L80/4L80E transmission comes with an Mad Dog Reprogramming update kit, Mad Dog shift kit, and Raybestos Z-PAK with 13 clutches (replaces factory 5 clutches in the 3-4 drum) the Z-PAK also has specialized heat treated steels that withstand much more abuse, all Raybestos high temp high energy clutches throughout the rest of the unit, all new steels, band, bushings, and rings. A 500 boost valve, 13 vane pump rotor.  We also use 4140 hardened pump rings, TEFLON pump bushing, a 29 element sprag, over-sized hardened sun gear shell (which is three times thicker than factory), hardened input shaft and drum, hardened output shaft, front and rear planets are cryogenically freezed, 4 pinion planetary gear (which has also been cold-freezed to withstand big horsepower and torque), high-temp Pro-series, Kevlar band and a Billet servo ( the Billet servo has 30% more holding power, to give you that full throttle shift without burning up the band. For full competition use only). However, I highly recommend running a Corvette servo if your going to drive the vehicle every day.


This transmission can also be setup for pulling and towing (no extra charge).

NOTE: Let us know what type of shift you want. We can custom build each valve body for your application.

-Stage 1 is a factory shift.
-Stage 2 has a nice crisp shift and at wide open throttle it will put you in your seat.
-Stage 3 is for that Saturday night special. Be warned stage 3 shift is very violent!

“NECK BRACE NOT INCLUDED !!!” If YOU’VE got THE HORSEPOWER we have the transmission !!!

4L80/4L80E Transmission includes $500 core charge.  If you bring me your core in good, rebuildable condition, your price will be reduced by $500.00

***Note: If the customer’s core is returned in a condition that it can be rebuilt (no cracks and within 15 days), a
refund will be processed to the customer.

Installations are available on all our transmissions.

These transmissions are a direct replacement for your GM vehicle.  No modifications or custom tuning necessary.

If you are looking for an overdrive transmission for your old school vehicle, we can do the complete installation or send you our conversion kit.

Extended warranties are available on all our transmissions.

*CALL FOR INFORMATION ABOUT A 5% MILITARY DISCOUNT