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Performance & Replacement Transmission & Drivetrain Parts
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic...
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
Building awesome horsepower is only part of the story. You need to deliver all that power to your car or truck’s wheels! We’ve got torque-hungry high performance automatic and manual transmissions for street and strip applications, torque converters and clutch sets, flexplates and flywheels, plus limited-slip differentials, spools, lockers, ring and pinion sets, driveshafts, U-joints, axles, bearings, C-clip eliminator kits, transfer cases, shift kits, and rebuild kits. We also have a wide selection of trans-brakes, shifters, cables, and accessories—everything you need to put the power to the ground, Summit style.
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Trail-Creeper 8.75" Ring And Pinion Gears - 5.29
Part Number: TGI-TGI-310043
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Fully Built Toyota 8.4" Differentials - Spool 5.29 Standard
Part Number: TGI-TGI-311594
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Longfield Super Finish Toyota 8.4in Ring & Pinion Gears - 5.29
Part Number: LSA-TGI-311564
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Trail-Creeper Super Finish 8.4" Ring and Pinion Gears - 5.29
Part Number: TGI-TGI-311564
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Six Shooter .001" Shims (Set of 10)
Part Number: TGI-TGI-311544
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Trail-Creeper 8.75" Ring And Pinion Gears - 4.88
Part Number: TGI-TGI-310042
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Longfield Super Finish Toyota 8.4in Ring & Pinion Gears - 4.88
Part Number: LSA-TGI-311563
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Longfield Super Finish Toyota 8 in. IFS Clamshell Ring & Pinion Gears - 4.88 3.73 & Down Cases
Part Number: LSA-TGI-312373
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
23 Spline Dual Case Coupler
Part Number: TGI-TGI-311750
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Longfield Super Finish Toyota 8 in. IFS Clamshell Ring & Pinion Gears - 4.88 3.90 & Up Cases
Part Number: LSA-TGI-312372
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Longfield Super Finish Toyota 8 in. IFS Clamshell Ring & Pinion Gears - 5.29 3.90 & Up Cases
Part Number: LSA-TGI-312374
Not Yet Reviewed
Estimated Ship Date: May 1, 2026 if ordered today
Estimated Ship Date: May 1, 2026 if ordered today
Longfield Toyota 8.75in Ring & Pinion Gears - 4.88
Part Number: LSA-TGI-310042
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Trail-Gear Rock Assault Bolt in Rear Axle For 2nd Gen Toyota Tacoma, 2005-2015, 8 in. E-Locker, No Inspection Hole
Part Number: TGI-TGI-312731
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Trail-Gear Rock Assault Bolt in Rear Axle For 2nd Gen Toyota Tacoma, 2005-2015, 8.4 in. Regular, No Inspection Hole
Part Number: TGI-TGI-312729
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Trail-Creeper Super Finish 8.4" Ring and Pinion Gears - 4.88
Part Number: TGI-TGI-311563
Not Yet Reviewed
Estimated Ship Date: May 13, 2026 if ordered today
Estimated Ship Date: May 13, 2026 if ordered today
Longfield Toyota 8.75in Ring & Pinion Gears - 5.29
Part Number: LSA-TGI-310043
Not Yet Reviewed
Estimated Ship Date: Apr 30, 2026 if ordered today
Estimated Ship Date: Apr 30, 2026 if ordered today
Axle Housing, Rock Assault 9, 75.625 in. Width, 3.50 in. Diameter, Ford, 9 in., Each
Part Number: TGI-144049-1-KIT
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Trunnion Bearing Eliminator Kit, Rock Assault, Toyota, Kit
Part Number: TGI-140254-1-KIT
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Differential Vent, Creeper Breather Bellows, Replacement, Round, Plastic, Black, Each
Part Number: TGI-140207-1
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Axle Seal, Rock Assault, Inner, Rear, Dana 60, Ford 9 in., Each
Part Number: TGI-144020
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Wheel Hub Fasteners, Hub Studs, 6mm Hex Head, 8mm x 1.25 Thread Size, Steel, Zinc Plated, Suzuki, Toyota, Set of 12
Part Number: TGI-300578-1-KIT
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Trail-Creeper T-Case Reduction Gear Kit, 4.7 Creeper Gear, 23 Spline, Toyota
Part Number: TGI-105001-1-KIT
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Wheel Bearings, Suzuki, Front, Kit
Part Number: TGI-141003-3-KIT
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Axle Housing Brace, Axle Truss, Steel, Natural, Toyota 8.0 (7.8) in., Each
Part Number: TGI-302549-1-KIT
Not Yet Reviewed
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Axle Seals, Trail-Safe, Front Inner, Nissan, Pair
Part Number: TGI-303752-KIT
Not Yet Reviewed
Estimated Ship Date: Monday 4/13/2026 if shipped by air
Estimated Ship Date: Monday 4/13/2026 if shipped by air
