Heavy Duty Truck Parts

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SKU: GTP09477

4.56 Ratio GM 8.875 Truck For ()

Regular price $630.30
Shipping calculated at checkout.


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Delivery and Shipping

This part typically ships within 1 to 2 business days.

This Differential Ring and Pinion is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

Specifications

Cover Bolt Quantity 10 Front (GM10-456)
Cover Bolt Quantity 12 Rear (GM12-456)
Differential Carrier Break 2.73 Ratio and Higher Front (GM10-456)
Differential Carrier Break 3.73 Ratio and Higher Rear (GM12-456)
Differential Model GM 8.5
Differential Model GM 8.875 Truck
Gear Ratio 4.56
Mounting Location Front and Rear
Pinion Gear Tooth Quantity 9
Pinion Shaft Diameter 1.438 Rear (GM12-456) Inch
Pinion Shaft Diameter 1.626 Front (GM10-456) Inch
Pinion Spline Count 30
Ring Gear Bolt Quantity 10 Front (GM10-456)
Ring Gear Bolt Quantity 12 Rear (GM12-456)
Ring Gear Material 8620 Steel
Ring Gear Outside Diameter 8.5 Front (GM10-456) Inch
Ring Gear Outside Diameter 8.875 Rear (GM12-456) Inch
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Warranty Period 1 Year or 50,000 Miles

Vehicle Applications

Year Make Model
1977-1981 Chevrolet K5 Blazer
1977-1981 Chevrolet K10
1977-1982 Chevrolet K10 Suburban
1977-1981 Chevrolet K20
1977-1981 Chevrolet K20 Suburban
1979-1982 GMC K1500
1977-1978 GMC K15 Suburban
1979-1982 GMC K1500 Suburban

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