Our Featured Transmission Parts

Hard-to-find. High-impact. Limited availability.

These bearing and race kits address a high-mileage failure condition inside Toyota UA80E and UB80E transmissions caused by increased axial loads and vibration generated by the rear planetary gear design.

✔ Each kit includes one bearing and one race
✔ Designed to manage axial load and vibration
✔ Helps prevent inner race rotation at high mileage
✔ Not widely stocked by most suppliers

These components play a critical role in protecting the hub and surrounding geartrain components during rebuilds.

Hard-to-find. Updated design. Built for rebuilders.

These updated P3 planet and sun gear assemblies provide a replacement solution for Ford 10R80 and 10R60 transmissions. Each set includes the P3 planetary assembly and corresponding sun gear for servicing the planetary section during transmission rebuilds.

✓ Updated P3 planet and sun gear assembly
✓ Available for 10R80 and 10R60 transmissions
✓ Includes matching planetary assembly and sun gear
✓ Designed for transmission rebuilds and hard-part replacement
✓ Hard-to-find components available from Auto Matic Kings

Hard-to-find. Professionally resleeved. Ready for the rebuild.

This UB80E B1 drum has been resleeved and fitted with new bearings, providing rebuilders with a ready-to-install hard-part solution when servicing the B1 drum assembly.

✓ Professionally resleeved B1 drum
✓ Includes new bearings
✓ Designed for UB80E transmission applications
✓ Helps restore a critical hard-part assembly during rebuilds
✓ Hard-to-find component available from Auto Matic Kings

The resleeved drum and new bearings provide a convenient replacement option for rebuilders who need to address wear in the B1 drum assembly without sourcing the components separately.

Hard-to-find. High-impact. Limited availability.

This new transfer drive gear bearing and race is designed for Toyota UB80E transmissions, providing rebuilders with the components needed when servicing the transfer drive gear assembly. The UB80E is part of Toyota’s 8-speed automatic transmission family.

✓ Includes one new bearing and one race
✓ Designed for UB80E transmission applications
✓ Supports proper transfer drive gear operation
✓ Ideal for transmission rebuilds and hard-part replacement
✓ Hard-to-find component available from Auto Matic Kings

These components provide a convenient replacement solution when servicing the transfer drive gear assembly, helping rebuilders replace the bearing and race together during a UB80E rebuild.

New aftermarket. Hard-to-find. Ready for the rebuild.

This new aftermarket underdrive planetary geartrain provides a replacement solution for Toyota transmission applications. 

✓ New aftermarket underdrive planetary assembly
✓ Fits U660E, U661E, U760E & U761E applications
✓ Replacement solution for the underdrive geartrain
✓ Designed for transmission rebuilds and hard-part replacement
✓ Hard-to-find component available from Auto Matic Kings

This new OEM C3/C4 drum and band kit provides the components needed when servicing the C3/C4 clutch assembly in Aisin TG-81SC 8-speed automatic transmissions. The C3/C4 drum is a critical hard part within the transmission's clutch system and is available as a complete replacement solution for professional rebuilders.

✓ New OEM C3/C4 drum
✓ Includes matching band
✓ Designed for TG-81SC 8-speed transmissions
✓ Complete replacement solution for rebuild applications
✓ Hard-to-find component available from Auto Matic Kings

Professionally resurfaced. Rebuild-ready. Hard-to-find.

This resurfaced bell housing provides a reconditioned hard-part solution for GM 6L80 and 6L90 transmission rebuilds. Resurfacing restores critical machined surfaces of the housing, providing rebuilders with a serviceable component without requiring a new replacement housing. Machining/resurfacing of 6L80/6L90 bell housings is a standard rebuilding service for these components.

✓ Professionally resurfaced bell housing
✓ For GM 6L80 & 6L90 transmissions
✓ Restores critical machined surfaces
✓ Ideal for transmission rebuilds and hard-part replacement
✓ Hard-to-find component available from Auto Matic Kings

Professionally resurfaced. Rebuild-ready. Hard-to-find.

This resurfaced pump stator provides a reconditioned hard-part solution for GM 6L80 and 6L90 transmission rebuilds. The pump stator is a critical component of the transmission’s pump assembly, and resurfacing restores the working surface for continued service during a rebuild. Machining/resurfacing of the pump and stator is a documented rebuilding practice for these transmissions.

✓ Professionally resurfaced pump stator
✓ For GM 6L80 & 6L90 transmissions
✓ Non-rotational ring-type design
✓ Ideal for transmission rebuilds and hard-part replacement
✓ Hard-to-find component available from Auto Matic Kings

This resurfaced stator gives rebuilders a ready-to-use replacement option when servicing the pump assembly in 6L80 and 6L90 transmissions.

Professionally welded. Pressure-ready. Built for the rebuild.

This welded 3-5/Reverse drum provides a reconditioned hard-part solution for GM 6L90 transmission rebuilds. The 3-5/Reverse drum is part of the 1-2-3-4 and 3-5 Reverse clutch assembly, where the welded area can be a point of concern during rebuilding.

✓ Welded 3-5/Reverse drum
✓ Designed specifically for GM 6L90 transmissions
✓ Services the 1-2-3-4 / 3-5 Reverse clutch assembly
✓ Ideal for transmission rebuilds and hard-part replacement
✓ Hard-to-find component available from Auto Matic Kings

This welded drum gives rebuilders a ready-to-use hard-part option when servicing the 1-2-3-4 and 3-5 Reverse clutch section of the 6L90.

This heavy-duty center support case saver provides a repair and upgrade solution for GM TH350, 700R4 and 4L60E transmissions. Designed for applications with worn case lugs, it allows rebuilders to restore the case rather than replace it while upgrading to a wide sprag/roller clutch center support design.

✓ Heavy-duty center support case saver
✓ Helps salvage cases with worn case lugs
✓ Wide sprag/roller clutch design
✓ Fits TH350, 700R4 & 4L60E applications
✓ Can be used as a case repair or upgrade

The manufacturer specifically says the A74761D was designed to address worn case lugs and uses the wider 1987-up roller clutch assembly for increased holding capability.