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Charts & Guides for Part Number RMG-78-8228-1
Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.2 in., Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
78-8228-1
Part Type:
Product Line:
Summit Racing Part Number:
RMG-78-8228-1
UPC:
698231764336
Manufacturer of Axle:
GM
Aftermarket Carrier Style:
Mini spool
Cover Bolts:
10
Axle Shaft Spline Quantity:
28
Spool Material:
Steel
C-Clip Eliminator Kit Required:
No
Quantity:
Sold individually.
Notes:
Fits open differentials only. Mini-spools take the place of the stock-type side gears in OEM type (non-limited slip) differentials only!
Richmond Gear Mini-Spools
Replace the internal components of your differential with Richmond Gear mini-spools. They lock your axles together for even power distribution to both driven wheels. They're CAD/CAM-designed, CNC-machined from 4140 alloy-steel forgings, and heat-treated to aircraft standards. Mini spools are recommended for dirt track use only.Richmond Gear has been supplying racers for more than 80 years.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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