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Speedway Motors Bill Smith

GM 10 Bolt Ring and Pinion Instal Kit, 8.5 R&P, 30 Spline

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Please NOTE the following about this product:

  • This item is sold as a set.

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What's in the Box

Everything you need for a complete ring and pinion installation job.

Kit Includes:

  • cover gasket
  • crush sleeve
  • marking compound and brush
  • pinion and carrier bearings
  • pinion nut and washer
  • pinion seal
  • thread locking compound
  • sealer

Note: Pinion-depth shims are not included. 

Item Details

30 Spline Pinion

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1970-76 GM 10-Bolt Mini Spool
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910-48601 Instructions (PDF)

1970-96 GM 10 Bolt 8 1/2 Inch Ring and Pinion
                        

Many ratios to choose from.

  • 8.50" diameter ring gear
  • 1.625" diameter pinion
  • 10 ring gear bolts
  • 10 cover bolts
  • 30 pinion splines
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Note: When replacing a stock 2.56 (or numerically lower) ratio, the carrier must also be replaced with a 2.73 or higher ratio's carrier to compensate for the difference in ring gear thickness.

GM 8.5 Inch 10-Bolt Steel Full Spool, 28-Spline
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