3.91 Ratio Performance Differential Ring and Pinion for 8.75 (Inch) (Dropout)

2105
143061
143062
143063
2107

Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Our gear sets are made from first-run steel, we never use recycled metal. This allows Motive Gear Performance ring and pinions to handle the extreme torque from high horsepower racing engines. Extensive engineering, computer controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios, makes Motive Gear Performance ring and pinions the clear winner! Engineered to the highest standards, every Motive Gear Performance product goes through rigid quality control processes in our in-house lab. Motive Gear Performance: What the pros run!

C887391L Application Notes

  • For Chrysler 8.75" (489 Housing)
  • Performance Ring and Pinion
  • 3.91 Ratio
  • 29 Spline Pinion, Verify Spline Count For Fitment

Warranty

2 Years or 100,000 Miles

C887391L Specifications

Cover Bolt Quantity Dropout
Differential Case Design Type Chrysler 8.75
Pinion Gear Tooth Quantity 11
Pinion Shaft Diameter 1.875 (Inch)
Pinion Spline Count 29
Ring & Pinion Gear Ratio 3.91
Ring Gear Bolt Quantity 12
Ring Gear Diameter 8.75 (Inch)
Ring Gear Material 8620 Steel
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 43
Taxonomy A LD Differential, LD Differential, LD Differential, LD Differential, LD Differential
Taxonomy B Ring and Pinion, Ring and Pinion, Ring and Pinion, Ring and Pinion, Ring and Pinion
Taxonomy C Chrysler 8.75, Chrysler 8.75, Chrysler 8.75, Chrysler 8.75, Chrysler 8.75
Taxonomy D Rear, Rear, Rear, Rear, Rear
Where to buy

Vehicle Applications

  • 1970 – 1971 Chrysler 300
  • 1970 – 1973 Chrysler Imperial
  • 1970 – 1974 Chrysler New Yorker
  • 1970 – 1974 Chrysler Newport
  • 1970 – 1974 Chrysler Town & Country
  • 1971 – 1974 Dodge B100 Van
  • 1971 – 1974 Dodge B200 Van
  • 1970 – 1974 Dodge Challenger
  • 1970 – 1974 Dodge Charger
  • 1970 – 1973 Dodge Coronet
  • 1970 – 1974 Dodge D100 Pickup
  • 1970 – 1972 Dodge Dart
  • 1970 – 1973 Dodge Monaco
  • 1970 – 1973 Dodge Polara
  • 1970 – 1974 Dodge W200 Pickup
  • 1970 – 1972 Fargo D100 Pickup
  • 1970 – 1972 Fargo W200 Pickup
  • 1974 Ford Victor
  • 1970 – 1974 Plymouth Barracuda
  • 1970 – 1974 Plymouth Fury
  • 1970 – 1974 Plymouth Fury I
  • 1970 – 1974 Plymouth Fury II
  • 1970 – 1974 Plymouth Fury III
  • 1970 – 1971 Plymouth GTX
  • 1972 – 1974 Plymouth Gran Fury
  • 1974 Plymouth PB100 Van
  • 1974 Plymouth PB200 Van
  • 1970 – 1974 Plymouth Road Runner
  • 1970 – 1974 Plymouth Satellite
  • 1970 – 1972 Plymouth Valiant
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov