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

3077
3078
83887
83888
83889

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-10 Application Notes

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

Warranty

2 Years or 100,000 Miles

C887391L-10 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 10
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

  • 1969 – 1970 Chrysler 300
  • 1969 – 1970 Chrysler Imperial
  • 1969 – 1970 Chrysler New Yorker
  • 1969 – 1970 Chrysler Newport
  • 1969 – 1970 Chrysler Town & Country
  • 1969 – 1970 Dodge A100
  • 1970 Dodge Challenger
  • 1969 – 1970 Dodge Charger
  • 1969 – 1970 Dodge Coronet
  • 1969 – 1970 Dodge D100 Pickup
  • 1969 – 1970 Dodge Dart
  • 1969 – 1970 Dodge Monaco
  • 1969 – 1970 Dodge P200
  • 1969 – 1970 Dodge P300
  • 1969 – 1970 Dodge Polara
  • 1969 – 1970 Dodge W100 Pickup
  • 1969 – 1970 Fargo D100 Pickup
  • 1969 – 1970 Fargo W100 Pickup
  • 1970 Ford Royal
  • 1969 – 1970 Plymouth Barracuda
  • 1969 – 1970 Plymouth Fury
  • 1969 – 1970 Plymouth Fury I
  • 1969 – 1970 Plymouth Fury II
  • 1969 – 1970 Plymouth Fury III
  • 1969 – 1970 Plymouth GTX
  • 1969 – 1970 Plymouth Road Runner
  • 1969 – 1970 Plymouth Satellite
  • 1969 – 1970 Plymouth Valiant
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov