4L80E / 4L85E

Transmission fluid that runs hot oxidizes, and once it does the friction material and seals both go with it.4L80E pump used (case has only one raised front cooler line boss)....

A component sourced by appearance instead of by unit code is a repair waiting to come back.4L80E pump used (body cast 302 779 stator cast 512 379) 03. This part...

A converter that has been through a failure holds debris no flush will remove.4L80E torque converter p i performance 3 disc 3400 rpm. The internals are restored to the specification...

The cost of a wrong part is never the part; it is the second teardown.4L80E overdrive planet with overdrive drum set. This is the correct piece for the unit code...

Old sealing material gets brittle in storage as well as in service, which is why age matters as much as mileage.4L80E convertion kit pump convertion kit. The rubber is rated...

When the upper clutch drum on a 4L80E or 4L85E is cracked, worn at the clutch piston bore, or otherwise damaged, replacing the drum directly is often the most efficient...

Heat is what ends the service life of an automatic transmission, and the cooler is the only part that fights it.4L80E Rear Cooler Line (Push-In Type) UpFitting. This adds the...

Sticking valves are why a unit shifts correctly cold and misbehaves once it warms up.4L80E bonded lip seal sleeve fwd cl .086 orifice (retros to 1991) in kits. This valve...

Pressure that reads correct at the test port can still be lost inside the body.4L80E (improved) shift kit. The assembly restores the circuits that route pressure to each pack.Debris holds...

Shift timing lives in the valve body, and worn bores put that timing out of range.4L80E Valve Body Kit ligas y ajuste de tambor 2009. This restores the apply rates...

Heat changes solenoid resistance, so a unit that shifts cold and misbehaves hot points straight at the electrical side.4L80E internal (male) w temp sensor 03 wire harness. This component restores...

A worn forward drum bushing in a 4L80E or 4L85E allows the drum to walk in the bore, which throws off clutch pack end play and leads to soft or...

A separator plate with a worn orifice changes the apply rate of every shift it controls.4L80E kit de conversio de pump de tipo viejo a moderno 1997. This returns shift...

4L80E Rebuild Kit Performance Heavy Duty for 4L80E and 4L85E automatic transmissions, 1990 to 1996. Built around Stage 2 Blue Plate Clutches. Includes Stage 2 performance frictions, band, gasket and...

4L80E Banner Rebuild Kit Performance Heavy Duty for 4L80E and 4L85E automatic transmissions, 1997 and later. Built around Stage 1 Red Clutches. Includes Stage 1 performance frictions and gasket and...

4L80E 4L85E Complete Transmission Rebuild Kit [97-UP]automatic transmission kit designed for service or rebuild applications, providing reliable fit and consistent performance when installed according to specification.What's Included:- Clutch pack RAYBESTO.S...

4L80E Banner Rebuild Kit Performance Heavy Duty for 4L80E and 4L85E automatic transmissions, 1990 to 1996. Built around Stage 1 Red Clutches. Includes Stage 1 performance frictions and gasket and...

4L80E 4L85E Complete Transmission Rebuild Kit [90-96]automatic transmission kit designed for service or rebuild applications, providing reliable fit and consistent performance when installed according to specification.What's Included:- Clutch pack RAYBESTO.S...

A slipping pack burns fluid and fouls the whole unit, so the frictions are rarely the only casualty once the symptom appears.4L80E Friction Clutch Pack 1964- direct fwd gen2 .080....

A teardown that finds one worn component has almost always found the first of several.4L80E repair kit test harness external harness (20 pin) (ROSTR.A). The contents are matched to each...