ClickCease 1970-1975 Chrysler 8.25" Rear - Limited Slip Posi Package w/ Master Be – Rigid Axle


1970-1975 Chrysler 8.25" Rear - Limited Slip Posi Package w/ Master Bearing Kit

$1,761.16 $1,116.57

POSI-C8.25-27-RA C8.25-276-RA C8.25MK-A

Positraction, Gear & Install Package

Rigid Axle

+ -

Chrysler 8.25" - Posi Package


Package Includes:

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

- *Note: The Chrysler 8.25" has a carrier break at 2.71 & numerically higher. That means if you have a lower ratio, and would like to run a 3.21 ratio, you will need to buy a new carrier. A modified cross shaft is required for high numerical ratio gear sets 4.10, 4.56, and 5.13. Contact support if you need help figuring out what carrier you have.

- Our Rigid Axle Eaton style limited-slip positraction unit uses carbon fiber and steel friction plate technology 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, Forged Steel Case
  • Carbon-Fiber and Steel 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) Pinion Bearings and Races
  • Carrier Bearings and Races
  • Pinion and Carrier Shims
  • Pinion Seal
  • Pinion Nut
  • Ring Gear Bolts
  • Crush Sleeve
  • Complete Shims
  • Threadlocker
  • 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!


  • Chrysler New Yorker (1968-1975)
  • Chrysler Imperial (1971-1975)
  • Dodge B100 Dodge Van 1/2 Ton (1970-1975)
  • Dodge Monaco (1966-1975)
  • Dodge Ram Van 2500 3/4 Ton (1971-1975)
  • Dodge Coronet (1963-1975)
  • Dodge Ram Van 1500 1/2 Ton (1970-1975)
  • Dodge D200 2wd 3/4 Ton (1970-1975)
  • Dodge Dart (1966-1975)
  • Dodge Charger (1968-1975)
  • Dodge Polara (1960-1974)
  • Dodge W100 1/2 Ton 4x4 (1970-1975)
  • Dodge A100 1/2 Ton (1964-1971)
  • Dodge D100 2wd 1/2 Ton (1970-1975)
  • Plymouth Duster (1970-1975)
  • Plymouth Belvedere (1968-1970)
  • Plymouth GTX (1968-1971)
  • Plymouth Barracuda (1964-1974)
  • Plymouth Satellite (1965-1974)
  • Plymouth Road Runner (1968-1970)
  • Plymouth Fury (1966-1975)


  • Differential Model: Chrysler 8.25"
  • Cover Bolt Quantity: 10 or 12 (C213RE)
  • Carrier Breaks: 2.71 & Numerically Higher
  • Carrier/Axle Spline Count: 27 or 29
  • Ring Gear Bolt Quantity: 10
  • Ring Gear Diameter: 8.25"
  • Ring Gear Rotation: Standard
  • Ring Gear Material: 8620 Steel
  • Ring Gear Bolt Size: 3/8" x 24 LH ('76-'04), 10mm x 1.0 ('05-'13)
  • Pinion Diameter: 1.626"
  • Pinion Spline: 27

Success! You've added this item to your cart.

was added to wishlist success.