Hard Parts

4L80E Planet Pinion Roller | Sonnax | 1999-UP | 72-Pack

4L80E Overdrive Planet Pinion Roller FITS 1999-UP UNITS WITH WIDER PLANET GEARS. THIS APPLICATION CAN BE IDENTIFIED BY ITS PLANET GEAR WIDTH OF 0.816''; A NEEDLE ROLLER LENGTH OF 0.804''; AND THE PTFE-COATED BIMETAL SYMMETRIC THRUST WASHER Sonnax Part...

4L80E Planet Pinion Roller | Sonnax | 1991-1998 | 80-Pack

4L80E Overdrive Planet Pinion Roller OVERDRIVE PLANETARY, .855'' LONG ROLLERS FITS 1998 AND EARLIER UNITS Sonnax Part Number: 34880-03 PACK OF 80

4L80E Heavy Duty Input Shaft | Sonnax | Under 1000HP Applications

4L80E Heavy Duty Input Shaft USE ONLY WITH 1993 AND UP OVERDRIVE CARRIER WITH FOUR LUBE SLOTS Sonnax Part Number: 34670-01 nput shaft failure is a common problem in performance and heavy duty GM 4L80-E and 4L85-E transmissions. Sonnax heavy duty input...

TH400 4L80E Planet Pinion Pin | Sonnax | 4-Pack

TH400 4L80E 4L85E Output & Reaction Planet Pinion Pin Sonnax Part Number: 34875-01   Pack of...

TH400 4L80E 4L85E HD Main Shaft | Sonnax

TH400 4L80E 4L85E Heavy Duty Main Shaft Sonnax Part Number: 34672-01 Main shaft failure is a common problem in performance and heavy duty GM TH400, 4L80-E and 4L85-E units. Sonnax heavy duty main shaft 34672-01 is manufactured from high strength 300M...

Powerglide TH400 4L80E HD Clutch Retaining Ring | Sonnax

TH400 4L80E Heavy Duty Clutch Retaining Ring Sonnax Part Number: 28124 Sonnax heavy duty clutch retaining ring 28124 can be used as an upgrade for the Reverse clutch backing plate retaining ring in GM Powerglide transmissions and for the intermediate...

TH400 4L80E Extreme Duty Main Shaft | Sonnax

TH400 4L80E Extreme Duty Main Shaft Sonnax Part Number: 34672-05 Main shaft failure is a common problem in extreme duty GM TH400, 4L80-E and 4L85-E units. OE and aftermarket shafts simply don’t hold up in extreme horsepower applications, leading...

4L80E Intermediate Sun Gear Shaft | 1999-UP | Shortened Bushing Journal & ID Groove | 24207267

4L80E Intermediate Sun Gear Shaft - 3rd Design 1999-UP 4.370'' bushing journal which is 0.041'' shorter than the 2nd design (1997-1998). ID groove in splines 

4L80E Rear Planet Gear Train Straight Cut Gears

Dipstick Tube Repair End fpr GM, Ford, & Chrysler (Includes Hat Seal) (Can be Braised)

SKU# K35999RFits Ford, Chrysler & GM (with GM hat seal) Made of steel so it can be braised.

4L80E 4L85E TH400 HD Intermediate Clutch Outer Sprag Race | Sonnax

4L80E 4L85E TH400 HD Intermediate Clutch Outer Sprag Race by Sonnax Part No. 34663HD-02 Improve GM 4L80-E, 4L85-E and TH400 transmission durability with Sonnax heavy duty intermediate clutch outer sprag race 34663HD-02. It’s an ideal upgrade...

4L80E Main Shaft (1991-1996)

4L80E Ring Gear Late Style (4 Lube Tracks in Spline)

This is a good used ring gear for 4L80E automatic transmissions.  All our used 4L80E hard parts have been cleaned and inspected to ensure the part you receive is 100% ready to use in your rebuild.  This is the Late style ring gear with the 4...

TH400 4L80E Universal Intermediate Shaft Heavy Duty

TH400 4L80E Universal Intermediate Shaft Heavy Duty Made from MARAGING Steel which has a 20% stronger yield point than 300M. TCS has eliminated the common failure points of the OEM design by eliminating the undercuts behind the ring gear and clutch hub...

4L80E Input Shaft 300M Steel

GM 4L80E Input Shaft 300M Steel Made from 300M steel. This shaft is vastly stronger than the OEM shaft and is a must have component for high horsepower pro-street and off-road applications.

4L80 TH400 Billet Steel Clutch Hub

4L80, TH400 Billet Steel Clutch HubFeatures include: Made from 4140 HTSR billet steel to eliminate spline failures in high horsepower applications. Two Torrington thrust bearings that replace the conventional thrust washers. Designed to be used in...

4L80E Manual Shaft 4.66'' Long

4L80E Manual Shaft 4.66'' Long (Used)  

4L80E Rear Planet Slant Cut Gears w/ Sensor Ring .795" Tall Gear (1999-2009))

Planet, Rear, 4L80E, Slant Cut, 5 Gear, W/ sensor ring, .795" Tall Gear, Late Style, 1999-2009

4L80E Rear Planet Slant Cut 4 Gear w/ Sensor Ring .795" Tall Gear (1999-2009)

Planet, Rear, 4L80E, Slant Cut, 4 Gear, W/ sensor ring, .795" Tall Gear, Late Style, 1999-2009

4L80E TH400 (1962-1992) Front Planet w/ 4-Pinions & .710"Slant Gear (1991-1995)

This is a good used front planet assembly with four pinions with .710" slant gears for early 4L80E automatic transmissions from 1991 to 1995.