ClickCease 1973-1981 GM 7.5" 10 Bolt - Gear and Limited Slip Posi Package w/ Inst –


1973-1981 GM 7.5" 10 Bolt - Gear and Limited Slip Posi Package w/ Install Kit


POSI-GM7.5-RA GM7.5-308-RA GM7.5MK-A

Positraction, Gear & Install Package

Rigid Axle

+ -

GM 7.5" 10 Bolt Gear & Posi Package


Package Includes:

(1) Limited Slip Positraction Carrier
(1) Ring and Pinion Gear Set (Choose Ratio Above)
(1) Differential Master Install Kit

- Our Rigid Axle Eaton style limited-slip positraction unit uses Raybestos composite clutches for smooth and aggressive traction. The carrier case is forged steel for strength and reliability. Because this carrier is an eaton style clutch posi, it can be rebuilt and serviced. Our Rigid Axle positraction is the perfect choice for daily drivers, weekend warriors, towing, basic off-road use, and street/strip applications. See below for some key features and tech specifications:

  • Fully Machined, High Strength Nodular Case
  • Raybestos Composite Clutches
  • Serviceable & Rebuildable Design
  • 1 Year Warranty against Manufacturer Defects
  • Non-Synthetic GL-5 Gear Oil Recommended
  • Friction Modifier Required

- Rigid Axle's aftermarket ring and pinion gear sets are made from heat treated 8620 steel. Our aftermarket gear set is made using a five-cut, face milled manufacturing process. Once set up correctly, this will give a square contact pattern on the drive and coast side of each tooth. We are proud of our ring and pinion lines, and you will be too!

- Remember to properly break in your new gear set! Click here for instructions!

- Our Master overhaul kits come with everything you need to replace, modify, or rebuild your differential. This will allow you to get the job done quicker, and cheaper at the end of the day. Rigid Axle master bearing install kits include:

  • Both (Inner & Outer) High Quality Koyo Pinion Bearings and Races
  • High Quality Koyo Carrier Bearings and Races
  • Pinion and Carrier Shims
  • Pinion Seal
  • Pinion Nut
  • Ring Gear Bolts
  • Crush Sleeve and Preload Shims
  • Loctite
  • RTV Sealant or Cover Gasket

- Rigid Axle is proud to offer our customers a full line of differential, transfer case, and transmission parts. We specialize in complete rebuild kits for domestic cars and trucks. Give us a call with your year, make, and model and we'll build you a custom kit for your build!


  • Buick Skylark (1975-1979)
  • Buick Electra (1977-1981)
  • Buick Apollo (1973-1975)
  • Buick Regal (1978-1981)
  • Chevrolet / Chevy El Camino (1977-1981)
  • Chevrolet / Chevy Caprice (1978-1981)
  • Chevrolet / Chevy Monte Carlo (1978-1981)
  • Chevrolet / Chevy Nova (1977-1979)
  • Chevrolet / Chevy Impala (1977-1981)
  • Chevrolet / Chevy Malibu (1973-1981)
  • Oldsmobile Omega (1976-1979)
  • Oldsmobile Cutlass (1978-1981)
  • Pontiac Firebird (1977-1981)
  • Pontiac Catalina (1975-1981)
  • Pontiac Ventura (1972-1976)
  • Pontiac Grand Prix (1977-1981)
  • Pontiac Bonneville (1975-1981)
  • Pontiac Trans Am (1977-1981)


  • Cover Bolt Quantity: 10
  • Differential Model: GM 7.5"
  • Carrier Type: Eaton Clutch Style
  • Carrier Spline Count: 26
  • Pinion Shaft Diameter: 1.438 Inch
  • Pinion Spline Count: 27
  • Ring Gear Bolt Quantity: 10
  • Ring Gear Diameter: 7.5 Inch
  • Ring Gear Material: Heat Treated 8620 Steel
  • Ring Gear Rotation: Standard

Customer Reviews

Based on 1 review Write a review
Success! You've added this item to your cart.

was added to wishlist success.