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1959-1964 Chevrolet B-Body GM Notch Back Crate Differential System - Choose Your Width, Third Member, Gear Ratio, Spline

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Bous General Motors replacement parts. You choose your preferred configuration and Blue Moon Parts will ship your complete order in one package ready to install.
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Product Code:


  • Third Member
    • Cast-Aluminum Third Member with Worm Gear Limited Slip
    • Cast Iron Third Member with Clutch-Style Posi
  • Width - Axle Face to Axle Face
    • 57 Inch
    • 60 Inch
  • Gear Ratio
    • 3.00
    • 3.25
    • 3.50
    • 3.70
    • 3.89
    • 4.11
    • 4.56
  • # of Splines
    • 31
    • 35
  • Brand
    • Bous

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Terms and Conditions

30-day money-back guarantee
Shipping: 2-3 Business Days
Third Member Cast-Aluminum Third Member with Worm Gear Limited Slip, Cast Iron Third Member with Clutch-Style Posi
Width - Axle Face to Axle Face 57 Inch, 60 Inch
Gear Ratio 3.00, 3.25, 3.50, 3.70, 3.89, 4.11, 4.56
# of Splines 31, 35
Brand Bous
Brand: Bous