1977 CHEVROLET Differential & Rear-End Components Transmission & Drivetrain - Free Shipping on Orders Over $109 at Summit Racing

USA Standard Gear Ring and Pinion Sets ZG GM8.5-411 GM 8.5/8.6 in. 4.11 Gears

Ring and Pinion Gear, 4.11:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set

Part Number: SPZ-36216

Not Yet Reviewed

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Yukon Gear & Axle Ring and Pinion Sets YG GM8.5-456 GM 8.5/8.6 in. 4.56 Gears

Ring & Pinion Gear, 4.56 Ratio, GM, 8.5 in./8.6 in., Set

Part Number: YGA-24161

5.0 out of 5 stars ( 3 )

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Richmond Gear Pro Gear Ring and Pinion Sets 79-0077-1 Dana 60 4.56 Gears

Gear, Ring and Pinion, 4.56:1 Ratio, Dana 60, Set

Part Number: RMG-79-0077-1

4.0 out of 5 stars ( 1 )

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Auburn Gear Grip-N-Loc 30 Spline Differential GM 8.5/8.6 Inch 546022

Auburn Gear Grip-N-Loc 30 Spline Differential GM 8.5/8.6 Inch 546022

Differential, Auburn, Grip-N-Loc, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 Ratio and up, Each

Part Number: AUB-546022

5.0 out of 5 stars ( 3 )

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Yukon Gear & Axle 4340 Chromoly Axles YA W24150

Yukon front 4340 Chromoly axle kit for '69-'80 GM truck and Blazer, Dana 44 with 19/30 splines

Part Number: YGA-21413

4.6 out of 5 stars ( 5 )

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Alloy USA Mini Spools GM14/MSPL

Mini Spool, 30-spline, Steel, GM 10.5 in. (14-bolt), Each

Part Number: ALY-GM14MSPL

4.13 out of 5 stars ( 8 )

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Mile Marker Street Master Locking Hubs 302

Locking Hubs, Manual, Street Master, Stainless Steel, Polished, Chevy, Dodge, Ford, GMC, Jeep, Plymouth, Pair

Part Number: MMK-302

4.25 out of 5 stars ( 8 )

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Motive Gear Performance Ring and Pinion Sets G885342 GM 8.5/8.6 in. 3.42 Gears

Gear, Ring and Pinion, 3.42:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885342

5.0 out of 5 stars ( 6 )

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Eaton Detroit Truetrac 30 Spline Differential Dana 44/44 IFS 913A592

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, Dana 44, Each

Part Number: ETN-913A592

Not Yet Reviewed

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Powertrax Lock-Right Lockers GM 8.5 Inch 1920-LR

Differential, Lock-Right, Locker, 28-Spline, GM, 8.5 in., Each

Part Number: PWT-1920-LR

4.71 out of 5 stars ( 14 )

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Summit Racing™ Axle Upgrade Combos 35-0001

Axle Upgrade Combo, Dana 60, 35 Spline, Spicer U-Joints, Spicer Front Outter Axle Shafts, Manual Hubs, Kit

Part Number: CMB-35-0001

5.0 out of 5 stars ( 2 )

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Summit Racing™ Positraction 30 Spline Differential Carriers Dana 44 SUM-730972

Differential Carrier, Positraction, Nodular Iron, Dana 44, 3 Series, 30 Spline, Each

Part Number: SUM-730972

3.0 out of 5 stars ( 1 )

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Motive Gear Ring and Pinion Sets D60-354 Dana 60 3.54 Gears

Gear, Ring and Pinion, 3.54:1 Ratio, Dana 60, Set

Part Number: MGR-D60-354

5.0 out of 5 stars ( 4 )

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Yukon Gear & Axle 1541H Alloy Axles YA G14071750

Axle Shaft, Rear, C-Clip, 1541H Alloy, 30 Spline, 31.438 in. Length, GM 8.875 in., ChevyGMC, Pickup/SUV, Each

Part Number: YGA-21256

5.0 out of 5 stars ( 3 )

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Motive Gear Super Ring and Pinion Gear Installation Kits R12RSKT

Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit

Part Number: MGR-R12RSKT

4.14 out of 5 stars ( 7 )

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Auburn Gear Grip-N-Loc 28 Spline Differential GM 8.5/8.6 Inch 546018

Differential, Auburn, Grip-N-Loc, Limited Slip, 28-Spline, GM, 8.5/8.6 in., 2.73 & up, Each

Part Number: AUB-546018

Not Yet Reviewed

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Yukon Gear & Axle Muscle Car Limited Slip and Re-Gear Kits YGK2336

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

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Moser Engineering Replacement C-Clip Axles A103003

Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 30-Spline, Chevy, 8.5 in., Pair

Part Number: MSR-A103003

4.88 out of 5 stars ( 8 )

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Motive Gear Master Ring and Pinion Installation Kits R10REMKT

Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., 30-Spline Pinion, Kit

Part Number: MGR-R10REMKT

4.0 out of 5 stars ( 7 )

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Yukon Gear & Axle Ring and Pinion Sets YG GM12T-373 GM 8.875 in. (12-bolt) truck 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, 1.438 in. Pinion, 30 Spline, 8.875 in. Ring Gear, GM 8.875 in., Set

Part Number: YGA-24128

5.0 out of 5 stars ( 6 )

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B&M 12 Bolt GM 8.875 Inch Differential Cover 71504

Differential Cover, Rear, 12-bolt, Aluminum, Black Anodized, GM 8.875 in. Truck, Each

Part Number: BMM-71504

2.33 out of 5 stars ( 3 )

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Motive Gear Ring and Pinion Sets GM7.5-373 GM 7.5/7.625 in. 3.73 Gears

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-373

Not Yet Reviewed

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Powertrax No-Slip Traction Systems GM 8.875 Inch (12-bolt), Car/Truck 9207883005

Differential, No-Slip Traction System, 30-Spline, GM, 12-Bolt, Each

Part Number: PWT-92-0788-3005

3.88 out of 5 stars ( 8 )

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Mile Marker Part-Time Transfer Case Conversions 502

Manual Front Hub, Conversion, Chevy, Ford, GMC, with NP203 Transfer Case, Kit

Part Number: MMK-502

4.64 out of 5 stars ( 14 )

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Yukon Gear & Axle Ring and Pinion Gear and Installation Kit Combos YGK2225 GM 8.875 in. (12-bolt) truck 3.08 Gears

Ring and Pinion Gears,Yukon Gear & Axle 8.875" GM 12 Bolt Truck, 3.08 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals

Part Number: YGA-10625

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 21, 2025 if ordered today

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Estimated Ship Date: Oct 21, 2025 if ordered today