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Recommended Parts for RMG-GM85373

Richmond Gear EXCel Ring and Pinion Sets GM85373 GM 8.5/8.6 in. 3.73 Gears

4.25 out of 5 stars ( 12 )

Part Number: RMG-GM85373

Estimated Ship Date: Today

$219.99

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Mini Spool, Steel, 28-Spline, GM 8.5 in., Each

Part Number: MGR-MS10-28

5.0 out of 5 stars ( 4 )

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Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-78-1028-1

4.33 out of 5 stars ( 6 )

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Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-81-1028-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

Spool, Full Size, Steel, 30-Spline, 10-Bolt, GM 8.5 in., Each

Part Number: RMG-81-1030-1

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Estimated Ship Date: Nov 9, 2026 if ordered today

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Estimated Ship Date: Nov 9, 2026 if ordered today

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