1972 BUICK SKYLARK Differential & Rear-End Components

Spring, SPRING,COMPRSN, 500 LB/IN,OUTR

Part Number: PWT-8031001ZAV

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Differential Carrier Gear Kit

Part Number: RMG-XL-4048

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Differential Carrier Gear Kit

Part Number: RMG-XL-4058

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GEAR PINION 12 BOLT 8 7/8

Part Number: MGR-3880140

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SPACER

Part Number: PWT-1920604SAJ

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SLOTTED DRIVER

Part Number: PWT-424003DGE2

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COUPLER

Part Number: PWT-5201001CJR

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COUPLER

Part Number: PWT-5201004CJY

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COUPLER ASSEMBLY

Part Number: PWT-5201133CIS

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SPACER

Part Number: PWT-6241066SEG

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Spring, SPRING,COMPRSN, .25D,250 LB/IN

Part Number: PWT-8011001ZAT

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Spring, SPRING,COMPRSN,15 LB/IN,IN, NS

Part Number: PWT-8021001ZBG

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Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit

Part Number: MGR-R10RT

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Pinion Spacer, SPACER, SOLID GM 12 BOLT SHORT

Part Number: RMG-04-0012-2M

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Mini Spool, MINI SPOOL GM 10 BOLT 8.5"

Part Number: RMG-XL-5140

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Ring and Pinion Kit

Part Number: RMG-XL-1040-1

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Crosspin, Replacement, Steel, Spartan, GM 8.5 in., Each

Part Number: SPZ-17024

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Estimated Ship Date: Dec 11, 2025 if ordered today

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Gear, Ring and Pinion, 2.73:1, GM, 8.5 in., 8.6 in., Set

Part Number: SPZ-36346

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Cross Shaft, Differential, Steel, GM 8.5 in., with Mini-Spool, Each

Part Number: YGA-32238

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Estimated Ship Date: Dec 26, 2025 if ordered today

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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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• Mfr. Rebate

$35.00 Mail-In Rebate

Price after Manufacturer Rebate: $738.70

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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Ring and Pinion Gear Installation Kit, Minimum Install, 27-spline, Standard Rotation, Rear, GM 8.2 in., BOP Axle, Kit

Part Number: YGA-12054

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Estimated Ship Date: Dec 26, 2025 if ordered today

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8.5" GM REAR w/Aftermarket_AG-PRO,_YDG,_XHD-Std,_EATorDET BRG & SEAL KIT, KOYO BRGS

Part Number: SPZ-58050

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Estimated Ship Date: Dec 11, 2025 if ordered today

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Axle Assemblies, Stock Width, Ford 9 in., Black, 60.25 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy,Buick, Oldsmobile, Pontiac, Kit

Part Number: ART-11249682

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Axle Assemblies, Narrowed, Ford 9 in., Black, 57.25 in. Flange to Flange, 31-Spline Axles, 1541H Alloy, Chevy,Buick, Oldsmobile, Pontiac, Kit

Part Number: ART-11249683

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