Differential Ring and Pinion (12 Bolt)
49-0050-1 Application Notes
- For GM 8.5" O Axle (12 Bolt)
- 3.90 Ratio
- Thick Ring Gear
- Requires a 2.93 to 3.23 Ratio Carrier
Warranty
2 Years or 100,000 Miles
49-0050-1 Specifications
App Model
GM 8.5
Cover Bolt Quantity
12
Differential Carrier Break
2.93 to 3.23 Ratio
Differential Case Design Type
GM 8.5
Gear Ratio
3.90
Pinion Gear Tooth Quantity
10
Pinion Shaft Diameter
1.626 (Inch)
Pinion Spline Count
27
Ring Gear Bolt Quantity
10
Ring Gear Material
8620 Steel
Ring Gear Outside Diameter
8.5 (Inch)
Ring Gear Rotation
Standard
Ring Gear Tooth Quantity
39
Taxonomy A
LD Differential, LD Differential, LD Differential
Taxonomy B
Ring and Pinion, Ring and Pinion, Ring and Pinion
Taxonomy C
Rear, Rear, Rear
Taxonomy D
3.90, 3.90, 3.90
Vehicle Applications
- 1964 – 1971 Oldsmobile 442
- 1968 – 1972 Oldsmobile Cutlass
- 1968 – 1972 Oldsmobile Cutlass Supreme
- 1965 – 1981 Pontiac Catalina
- 1965 – 1971 Pontiac GTO
- 1964 – 1972 Pontiac LeMans
