• Eaton GM 8.5in Rear Master Install Kit K-GM8.5SR
  • Eaton GM 8.5in Rear Master Install Kit K-GM8.5SR
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Eaton

Eaton GM 8.5in Rear Master Install Kit K-GM8.5SR

Eaton GM 8.5in Rear Master Install Kit K-GM8.5SR

Part number: 8MB1R

$172.47 USD
$172.47 USD
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Eaton GM 8.5in Rear Master Install Kit K-GM8.5SR, with the part number and details listed below. Clunks when shifting into gear, vibration at speed or clicking in turns point to worn driveline parts.

Quick facts

  • Brand: Eaton
  • Part type: Driveline part
  • Position: Rear

Listed fitment

  • 1973 - 1975 Buick Apollo Base
  • 1975 Buick Apollo SR
  • 1973 - 1977 Buick Century Base
  • 1976 Buick Century Indianapolis 500 Pace Car
  • 1973 - 1975 Buick Century Luxus
  • 1975 - 1977 Buick Century Special, Custom
  • 1991 - 1996 Buick Commercial Chassis Base
  • 1971 - 1981 Buick Estate Wagon Base
  • 1971 - 1981 Buick LeSabre Base
  • 1985 Buick LeSabre Collector's Edition, Estate Wagon
  • 1971 - 1985 Buick LeSabre Custom
  • 1977 Buick LeSabre Custom Sport
  • 1979 - 1985 Buick LeSabre Limited
  • 1982 Buick LeSabre Limited Edition F/E
  • 1974 Buick LeSabre Luxus
  • 1978 - 1981 Buick LeSabre Sport
  • 1973 - 1987 Buick Regal Base
  • 1987 Buick Regal GNX
  • 1984 - 1987 Buick Regal Grand National, Limited
  • 1976 - 1977 Buick Regal SR
  • 1984 - 1986 Buick Regal T-Type
  • 1975 - 1978 Buick Riviera Base
  • 1975 Buick Riviera GS
  • 1978 Buick Riviera LXXV Anniversary Edition
  • 1976 Buick Riviera SR, Sport
  • 1992 - 1995 Buick Roadmaster Base, Limited
  • 1991 - 1995 Buick Roadmaster Estate Wagon
  • 1996 Buick Roadmaster Estate Wagon Collector's Edition, Collector's Edition, Limited Collector's Edition
  • 1970 - 1972 Buick Skylark 350
  • 1970 - 1979 Buick Skylark Base, Custom
  • 1976 - 1979 Buick Skylark S
  • 1978 Buick Skylark Sport
  • 1975 - 1977 Buick Skylark SR
  • 1976 - 1979 Cadillac Seville Base
  • 1978 - 1979 Cadillac Seville Elegante
  • 1977 - 1978 Cadillac Seville Opera
  • 1970 - 1975 Chevrolet Bel Air Base
  • 1964 - 1972 Chevrolet Biscayne Base
  • 1995 - 1999 Chevrolet Blazer Base
  • 1995 - 1997 Chevrolet Blazer Deluxe
  • …and 236 more

Tip: Mark driveshaft orientation before removal and torque fasteners to spec.

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About this driveline part

Gear and differential work needs careful setup.

Fitment notes

  • Specs, lead time and warranty come from Eaton and can change. The details above this guide are the latest we have.

Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.

Ask about fitment

Parts that usually go with it

  • Gear oil. Refill differentials with the right gear oil.

More for your car: All U-Joints · Transmission & drivetrain

Questions about driveline part

Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
What does a bad CV axle sound like?
Clicking when turning is the classic sign.
Where do specs and warranty details come from?
From Eaton. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.

Questions & answers

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