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Richmond Gear 78-7528-1 Mini Spool GM 7.5" 28 Spline

(Cadillac DeVille 1982-84, Fleetwood 1982-86, Brougham 1987; Chevrolet Camaro 1982-87, S10 1982-87, Impala 1977-79, Malibu 1978-83 + 43 more models)

Part of: Richmond Gear Differential Mini Spool

Other options in this family: Richmond Gear 78-7526-1 Richmond Gear 78-7628-1

Manufacturer

Picture for manufacturer Richmond Gear

Part Number

78-7528-1
7 reviews
Sale Price

$116.56

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Richmond Gear 78-7528-1 is a high-performance mini spool designed specifically for GM 7.5" rear differentials with 28-spline axles. This mini spool replaces the factory differential assembly to provide a solid, locked connection between both axle shafts, delivering 100% power transfer to both wheels at all times.

Key Features:

  • Direct replacement for GM 7.5" (10-bolt) rear differentials
  • 28-spline configuration for compatibility with factory and upgraded axle shafts
  • Eliminates power-robbing differential spider gears for maximum traction
  • Manufactured from high-strength steel for durability under racing conditions
  • Lightweight design compared to traditional full spools
  • Ideal for drag racing, circle track, and straight-line applications

Mini spools are designed for race-only or dedicated competition vehicles. Because they lock both rear wheels together, they are not recommended for street use as they eliminate the differential action needed for turning. Richmond Gear products are backed by decades of proven performance at professional racing events including NASCAR and NHRA competitions.

Products specifications

Fits

Cadillac DeVille 1982-84, Fleetwood 1982-86, Brougham 1987; Chevrolet Camaro 1982-87, S10 1982-87, Impala 1977-79, Malibu 1978-83, Caprice 1977-87, El Camino 1976-87, Monte Carlo 1978-88, Nova 1977-79, Astro 1985-87 + 38 more models

Differential Case Design Type

GM 7.5

Spline Quantity

28

Differential Case Design Type

GM 7.625

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Position

Rear

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