Transmission & Drivetrain
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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.
Ring & Pinion Gear Set GM 10 Bolt 8.5" / 3.42 Ratio
Part Number: SVL-2020642
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
BUILD IT WITH SUMMIT!
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: SUM-741002
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set
Part Number: MGR-GM10-342A
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set
Part Number: RMG-4902781
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, EXCel, 3.42:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set
Part Number: RMG-GM85342
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-G885342
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, 1.625 in. Pinion, 30 Spline, 8.500 in. Ring Gear, GM 8.5/8.6 in., Set
Part Number: YGA-24157
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5 in., O Axle, 10-Bolt, 3 Series, Set
Part Number: RMG-4900491
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5 in/8.6 in., Set
Part Number: MGR-GM10-342
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears,USA Standard 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781" Carrier Bearing Journal
Part Number: SPZ-10717
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625"
Part Number: YGA-10406
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set
Part Number: SPZ-36213
Not Yet Reviewed
Estimated Ship Date: Oct 17, 2025 if ordered today
Estimated Ship Date: Oct 17, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Today
Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781"
Part Number: YGA-10401
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625" Carrier Bearing Journal
Part Number: SPZ-10722
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM 8.5/8.6 in., Set
Part Number: AAF-ALL70122
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Today
Ring and Pinion Gears and Installation Kit, 8.5" GM 3.42 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)
Part Number: YGA-12621
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Ring and Pinion Gears and Installation Kit, 8.5" OLDSMOBILE GM 3.42 REAR R&P GEAR/ INSTALL KIT PACKAGE with 28spl POSI
Part Number: YGA-12593
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Ring and Pinion Gears and Installation Kit, 8.5" OLDSMOBILE GM 3.42 REAR R&P GEAR/ INSTALL KIT PACKAGE
Part Number: YGA-12595
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Ring and Pinion Gears, with Installation Kit, GM 8.25 in, IFS, GM 8.5 in. Rear, 4.11 Gear Ratio, Kit
Part Number: MGR-MGK-219
Not Yet Reviewed
Estimated Ship Date: Oct 22, 2025 if ordered today
Estimated Ship Date: Oct 22, 2025 if ordered today
Ring and Pinion Gears, with Installation Kit, GM 8.25 in, IFS, GM 8.5 in. Rear, 4.30 Gear Ratio, Kit
Part Number: MGR-MGK-224
Not Yet Reviewed
Estimated Ship Date: Oct 22, 2025 if ordered today
Estimated Ship Date: Oct 22, 2025 if ordered today
Ring and Pinion and Differential Combo, GM 8.5 in., 3.42:1 Ratio, 28-Spline, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: YGA-12627
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 3.42 Ratio Install Kit 30 SplineBearings & Seals
Part Number: YGA-10396
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.5" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit 30
Part Number: SPZ-10712
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
Differential Ring and Pinion, Differential Ring and Pinon Front and Rear Complete Kit
Part Number: MGR-MGK-221
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, GM, 8.5 in., Kit
Part Number: MGR-GM8-5IK
Not Yet Reviewed
Estimated Ship Date: Oct 22, 2025 if ordered today
Estimated Ship Date: Oct 22, 2025 if ordered today
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Summit Racing™ Ring and Pinion Sets SUM-741002 GM 8.5/8.6 in. 3.42 Gears
