Hard Parts

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.

6L90 Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft | Sonnax | PowerGlide Style Hub

6L90 Heavy Duty 4-5-6 Clutch Hub & Intermediate Shaft Sonnax Part Number: 104690-36 USE WITH OE-STYLE 36-TOOTH FRICTIONS AND OE STEELS An essential upgrade for any hard-working GM 6L90 transmission, Sonnax heavy duty 4-5-6 clutch hub and intermediate...

6L80 6L90 Transmission Case Vent

6L80 6L90 Transmission Case Vent

6L45 6L50 6L80 6L90 Bonded Separator Plate for Valve Body (2010-UP)

This is a bonded separator plate for the 6L45, 6L50, 6L80, and 6L90 transmissions. The gaskets are bonded to the plate. Only for the type-2 vlave bodies from 2010-UP. 

6L80 6L90 Lube Dam For Output Planetary | Sonnax

6L80 6L90 Output Planetary Lube Dam Sonnax Part Number: 104584LP The output planetary assembly in GM 6L80 and 6L90 transmissions has a lube dam, or cover, that directs lube oil flow to the planetary lube feed passages. Over time, the lube dam allows gunk...

6L80 Low Reverse Sprag Assembly (2006-UP) 38-Element

This is a new aftermarket replacement low-reverse sprag assembly for GM's 6L80 automatic transmissions manufactured from 2006 and up. OEM Replacement Numbers: 2420618 / 24236388 38-Element

6L90 Center Support - Used

This is a high quality good used center support for GM's 6L90 automatic transmissions manufactured from 2007 to 2018. 5-1/4'' Tall 6-Clutch Style

6L80 4-5-6 Pressure Plate Dampener

This is a new high quality AC Delco replacement 4-5-6 pressure plate dampener for GM's 6L80 automatic transmissions manufactured from 2006 and up.

6L80 Dampener Apply Plate Retainer

This is a high quality AC Delco replacement dampener apply plate retainer for GM's 6L80 automatic transmissions manufactured from 2006 and up.

6L80 6L90 Bellville Return Spring

This is a high quality replacement Bellville return spring for GM's 6L80 and 6L90 automatic transmissions.

6L90 3-5-Reverse Hub (8-1/2'' LG)

This is a quality used 3-5-Reverse hub for GM 6L90 transmissions. 8.5'' Long

6L80 6L90 6L45 6L50 Center Support Seal Kit | Sonnax

6L80 6L90 6L45 6L50 Center Support Seal Kit Sonnax Part Number: 104740-14K The rubber seals between the center support in the case and the machined surface of the valve body are prone to leakage over time. In GM 6L45, 6L50, 6L80, 6L90 transmissions, this...

6L80 3-5-R High Capacity Apply Ring | Sonnax

Sonnax high capacity 3-5-R apply ring 104548-01 for GM 6L80 units is shorter than the OE apply ring. When the Sonnax apply ring is installed and the OE waved plate is eliminated, this allows for one additional OE thickness friction and steel plate to be...

6L80 6L90 4-5-6 Clutch Backing Plate

GM 6L80 and 6L90 transmissions often suffer failure of the 4-5-6 clutch assembly due to flexing and bowing of the backing plate (coning), especially when clutch apply pressures exceed OE specification. The heavy-duty Sonnax 4-5-6 clutch backing plate...

6L80 6L90 2-6 Spring (2006-2015)