CHEVROLET Chevy big block Mark IV Differential & Rear-End Components

Differential Case Assembly Kit

Part Number: SDH-707387-1X

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Estimated Ship Date: Jan 8, 2026 if ordered today

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USA standard ring & pinion gear set for Dana 80 in a 3.31 ratio.

Part Number: SPZ-36270

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Differential, Grip LS Traction System, 30-Spline, GM, 8.5 in., Each

Part Number: PWT-LS201030

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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• Mfr. Rebate

$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $889.99

Rebate Expires: 12/31/2025

Get $35 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Differential Carriers, Grip Pro Traction System, 35 Spline, Dana 60, Front, 4.10 and Lower Ratio, Each

Part Number: PWT-GT436035F

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Estimated Ship Date: Jan 27, 2026 if ordered today

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$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $986.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Differential, Grip LS Traction System, 30-Spline, GM, 8.875 in., 3 Series Carrier, Each

Part Number: PWT-LS231230

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Estimated Ship Date: Jan 27, 2026 if ordered today

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$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $799.99

Rebate Expires: 12/31/2025

Get $35 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Differential, Grip Pro Traction System, 30-Spline, Dana 44, Front, Each

Part Number: PWT-GT444430F

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Estimated Ship Date: Jan 27, 2026 if ordered today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $740.05

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Differential Carrier, Grip Lok, Mechanical Locker, 30 Spline, Dana 44, Rear, Each

Part Number: PWT-LK444430

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Estimated Ship Date: Jan 27, 2026 if ordered today

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$55.00 Mail-In Rebate

Price after Manufacturer Rebate: $814.99

Rebate Expires: 12/31/2025

Get $55 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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GM 8.5" 28spl 4340 FRONT AXLE KIT, w/ 297X, 79-87 1/2TON TRK & BLAZER

Part Number: SPZ-35064

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 10.5" GM 14 Bolt, 5.13 Ratio Thick Rear Ring & Pinion GearInstall Kit Package,

Part Number: YGA-10523

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 10.5" GM 14 Bolt, 5.38 Ratio Thick Rear Ring & Pinion GearInstall Kit Package,

Part Number: YGA-10524

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Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.5 in., Set

Part Number: YGA-10407

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 4.88 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.625"

Part Number: YGA-10410

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Ring and Pinion Gears,Yukon Gear & Axle 10.5" GM 14 Bolt, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: YGA-10518

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High performance Yukon Ring & Pinion gear set for Dana 80 in a 3.31 ratio

Part Number: YGA-24323

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Estimated Ship Date: Jan 8, 2026 if ordered today

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14T 10.5" GM; 4.10&Dwn 40spl GRIZZLY LOCKER CARRIER ASSEMBLY (40spl CASE w/ LOCKER)

Part Number: YGA-11907

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Gear, Ring and Pinion, 3.54:1 Ratio, 1.750 in. Pinion, 29 Spline, 10.250 in. Ring Gear, Dana 70, Set

Part Number: YGA-24072

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Differential Carrier Case, Open, Locker Carrier Style, 32-spline, Steel, Rear, Dana 70, Each

Part Number: YGA-20032

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 8.5" GM, 4.88 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781"

Part Number: YGA-10405

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Differential Carrier Case, Open, Locker Carrier Style, 35-spline, Steel, Rear, Dana 70-HD, Each

Part Number: YGA-20034

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Yukon 1541H alloy axle kit for 12 Bolt passenger car, '68-'72 Chevelle and '70 Camaro

Part Number: YGA-21286

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Estimated Ship Date: Jan 8, 2026 if ordered today

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12T GM 33spl HD 2.76-3.42 DURAGRIP POSITRACTION; COMPOSITE CLUTCH

Part Number: YGA-11240

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Ring and Pinion Gears,USA Standard 10.5" GM 14 Bolt, 4.11 Ratio Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10832

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Differential Carrier, Spartan Locker, Steel, 10-bolt, 30-spline, Rear, Dana 60, Chevy, Dodge, Ford, Jeep, Each

Part Number: SPZ-17003

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Ring and Pinion Gears, 3.73:1 Ratio, 29-spline, Standard Ring Gear Rotation, Dana 70, Set

Part Number: YGA-24073

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Estimated Ship Date: Jan 8, 2026 if ordered today

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Ring and Pinion Gears,USA Standard 10.5" GM 14 Bolt, 4.56 Ratio Thick Rear Ring & Pinion GearInstall Kit Package,

Part Number: SPZ-10834

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Estimated Ship Date: Dec 29, 2025 if ordered today

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