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Proform Reinforced Differential Cover with Cap Support for GM 8.2"/8.5" 10-Bolt

778-66668


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Proform 66668
$128.99
More than 10 available
Reinforced Differential Cover with Cap Support
  • GM 8.2"/8.5" 10-Bolt
  • "Perfect Launch" Logo
  • Aluminum
  • Fluid Capacity and Magnetic Drain Plugs
  • Includes Mounting Bolts
  • Black Painted Finish
  • Ships
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    Does Proform 66668 fit your vehicle?

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    1974 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: K

    1978 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: -

    1975 PONTIAC BONNEVILLE

    • Liter: 7.5
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 455
    • Engine Type: V8 ( 7.5L / 455 )
    • Engine Vin: W

    1974 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: L

    1980 BUICK REGAL

    • Liter: 3.8
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 231
    • Engine Type: V6 ( 3.8L / 231 )
    • Engine Vin: 2

    1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: TRANS AM
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: -

    1973 PONTIAC CATALINA

    • Liter: 6.6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: -

    1979 BUICK ELECTRA

    • Liter: 5.7
    • SubModel: 225
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: R

    1975 OLDSMOBILE CUTLASS SUPREME

    • Liter: 7.5
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 455
    • Engine Type: V8 ( 7.5L / 455 )
    • Engine Vin: -

    1975 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: X

    1972 OLDSMOBILE DELTA 88

    • Liter: 7.5
    • SubModel: ROYALE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 455
    • Engine Type: V8 ( 7.5L / 455 )
    • Engine Vin: W

    1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 400
    • Engine Type: V8 ( 6.6L / 400 )
    • Engine Vin: T
    66668 is rated 3.0 out of 5 by 4.
    Rated 4 out of 5 by from bought for impala ss with built lt1, nice solid cover. don't how much it stops carrior flex, but looks cool as heck. only thing is they should have included a magnite in drain plug for any metal floating in rear end fluid
    Date published: 2018-04-17
    Rated 3 out of 5 by from Quality built Fit flat, no leaks. However, the bolts included are not long enough to make contact with the threads in the diff. Had to go buy 1/2" longer bolts. Big inconvenience if you need to drive vehicle immediately.
    Date published: 2021-02-10
    Rated 3 out of 5 by from Good price Was really looking forward to installing it and seeing how it looks,to bad the paint dont stay on it,kinda disappointing!handle with e treme care
    Date published: 2020-02-11
    Rated 2 out of 5 by from So so Ordered this for a Buick Regal and had incorrect bolts. The paint is very poor quality. Shiny to thr eye, but chips by the bolt and washer pressure during install. Appears to be a paint adhesion issue as the paint is flaking off. I could have easily gotten better adhesion with a rattle can. The drain plug is also on the wrong side and "I" should have noted that prior to the purchase.
    Date published: 2018-11-19
    • y_2021, m_5, d_14, h_18
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    Will this cover fit my 2009 GMC Denali AWD?

    Asked by: Gramps04
    No, this will not fit your GMC Denali.
    Answered by: Rusty B
    Date published: 2018-06-05
    • y_2021, m_5, d_12, h_17CST
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