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.

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Results 1 - 25 of 113

Stage 8 Locking Flexplate Bolts 8965A

Flexplate Bolts, Hex, Steel, Gold Iridite, 7/16 in.-20, 0.680 in. U.H.L., Chevy, Big, Small Block, Set of 6

Part Number: STG-8965-A

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Summit Racing™ Differential Support Covers SME-8510400NL

Differential Cover, Aluminum, Natural, Bearing Cap Support, GM, 7.5 in., 7.625 in., 10-Bolt, Each

Part Number: SME-8510400NL

4.81 out of 5 stars ( 21 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Stage 8 Locking Flexplate Bolts 8967A

Flexplate Bolts, Hex, Steel, Gold Iridite, 7/16 in.-20, 0.680 in. U.H.L., Chevy, Ford, Big, Small Block, Set of 6

Part Number: STG-8967-A

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Stage 8 Locking Flexplate Bolts 8966A

Flexplate Bolts, Hex, Steel, Natural, 7/16 in.-20 in. RH, 0.688 in. Underhead Length, Chevy, Pontiac, Set of 4

Part Number: STG-8966A

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Dana Spicer Drivetrain Products U-Joints 5-585XM

U-Joint; Greaseable; 1610 Series Half Round with Metric Bolts and Lock Straps

Part Number: SDH-5-585XM

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Pro-X Racing Parts Rear Sprocket Bolt Sets 07.SBSM825

ProX Rear Sprocket Bolt Set (6 pcs. M8x25)

Part Number: PXR-07-SBSM825

Not Yet Reviewed

Estimated Ship Date: Jan 29, 2026 if ordered today

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Estimated Ship Date: Jan 29, 2026 if ordered today

USA Standard Gear Master Overhaul Kits ZK C8.25-C

USA Standard Gear Master Overhaul Kit for Chrysler 8.25" with Metric Ring Gear Bolts

Part Number: SPZ-37151

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Meziere Enterprises Flexplate Fasteners FPHM111.5-8

FLEX PLATE BOLTS - LS METRIC 11MM X 1.5L - 8 PCS

Part Number: MEZ-FPHM111-5-8

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Yukon Gear & Axle - Ring Gear Fasteners for 2005-2010 GRAND CHEROKEE - YSPBLT-081

RING GEAR FASTENERS, Dana 44 Ring Gear BOLT , JEEP WK & XK , METRIC 12MM .

Part Number: YGA-33570

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 2026 if ordered today

ATI SFI Standard Bellhousings ATI200046

Bellhousing, Standard, New, SFI 30.1, for OEM Case, 356 T-6 Aluminum, GM, THM200 Metric Transmissions, Each

Part Number: ATI-200046

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Proform Perfect Launch 10 Bolt GM 7.5/7.625 Inch Differential Cover 66667

Differential Cover, Aluminum, Black, Perfect Launch Logo, GM, 7.50 in., 10-Bolt, Each

Part Number: PRO-66667

4.58 out of 5 stars ( 33 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

JOES Racing Products Kart/QM Front Hubs 25510

Hub, Kart, Front, Aluminum, Black Anodized, Fits 5/8 in. Spindle, Drilled/Tapped 1/4 in.-28 and 5/16 in.-18 on 2.5 in. Bolt Circle, Each

Part Number: JOE-25510

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

JOES Racing Products Kart/QM Rear Hubs 25560

JOES Racing Products Kart/QM Rear Hubs 25560

Hub, Kart, Rear, Short, Aluminum, Black Anodized, Fits 1-1/4 in. I.D., Drilled/Tapped 1/4 in.-28 and 5/16 in.-18 on 2.5 in. Bolt Circle, Each

Part Number: JOE-25560

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Summit Racing™ Differential Support Covers SME-8510300

Differential Cover, Aluminum, Natural, Summit Logo, Bearing Cap Support, GM, 8.2 in., 8.5 in., 10-Bolt, Each

Part Number: SME-8510300

4.97 out of 5 stars ( 34 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ Differential Support Covers SME-8510400

Differential Cover, Aluminum, Natural, Summit Logo, Bearing Cap Support, GM, 7.5 in., 7.625 in., 10-Bolt, Each

Part Number: SME-8510400

4.89 out of 5 stars ( 19 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

JOES Racing Products Axle Drive Flanges 25045

Axle Drive Flange, Steel, 24-Spline, Quick-Change Axle, 5 x 5 in. Bolt Circle, Each

Part Number: JOE-25045

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

JOES Racing Products Chain Guard Components 25701-3R

Chain Breaker Replacement Press Out Bolt

Part Number: JOE-25701-3R

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

BikeMaster Sprocket Fasteners 151967

SPROCKET BOLTS REPL M8/25 6/PC

Part Number: BKM-15-1967

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

PEM Racing Ford 9 in. Grand National Rear-End Assemblies HNK3003005

Rear End Assembly, Grand National, Ford 9 in., 31-Spline Axles, 5 x 5.00 in. Bolt Pattern, Kit

Part Number: PE2-HNK3003005

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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PEM Racing MAX Option Low Drag Quick-Change Rear-End Assemblies QCKSTGN5-411 MAX-60CP

Rear End Assembly, Quick Change, 31-Spline Axles, 4.11:1 Ring and Pinion, 5 x 5.00 in. Bolt Pattern, Kit

Part Number: PE2-S0197

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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PEM Racing MAX Option Low Drag Quick-Change Rear-End Assemblies QCKSTGN5-486 MAX-60CP

Rear End Assembly, Quick Change, 31-Spline Axles, 4.86:1 Ring and Pinion, 5 x 5.00 in. Bolt Pattern, Kit

Part Number: PE2-S0202

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Summit Racing™ Aluminum 10 Bolt GM 8.5/8.6 Inch Differential Cover SUM-730508

Differential Cover, Aluminum, Polished, GM, 8.5 in., 8.6 in., 10-Bolt, Kit

Part Number: SUM-730508

3.81 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Chrome 10 Bolt GM 8.2/8.5 Inch Differential Cover SUM-730304

Differential Cover, Steel, Chrome, GM, 8.5 in., 10-Bolt, Kit

Part Number: SUM-730304

4.22 out of 5 stars ( 55 )

Estimated Ship Date: Tomorrow

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Proform Chevy Bowtie 10 Bolt GM 7.5/7.625 Inch Differential Cover 141-695

Differential Cover, Aluminum, Black Crinkle, Bowtie Logo, GM, 7.50 in., 10-Bolt, Each

Part Number: PRO-141-695

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Summit Racing™ Aluminum 10 Bolt GM 8.5/8.6 Inch Differential Cover SUM-730508N

Differential Cover, Aluminum, Natural, GM, 8.5 in., 8.6 in., 10-Bolt, Kit

Part Number: SUM-730508N

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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