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66668 Proform Differential Cover Rear for Chevy Olds Cutlass NINETY EIGHT LeMans

US $215.23
as low as $37.35/mo with
Condition:
New
More than 10 available
Breathe easy. Free shipping and returns.
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Shipping:
Free Standard Shipping.
Located in: La Salle, Illinois, United States
Delivery:
Estimated between Tue, Dec 2 and Fri, Dec 5 to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days returns. Seller pays for return shipping.
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eBay item number:134095161954
Last updated on Nov 25, 2025 20:16:37 PSTView all revisionsView all revisions

Compatibility

This part is compatible with 1000 vehicle(s)
YearMakeModelTrimEngineNotes
1973PontiacGrandvilleBase Convertible 2-Door6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 6.6L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Convertible 2-Door7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Coupe 2-Door6.6L 400Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 6.6L 73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Coupe 2-Door6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 6.6L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Coupe 2-Door7.5L 455Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Coupe 2-Door7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Hardtop 4-Door6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 6.6L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Hardtop 4-Door7.5L 455Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72-73 Pontiac Grandville Differential Cover
1973PontiacGrandvilleBase Hardtop 4-Door7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72-73 Pontiac Grandville Differential Cover
1972BuickGSBase Convertible 2-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick GS Differential Cover
1972BuickGSBase Convertible 2-Door5.7L 5733CC 350Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick GS Differential Cover
1972BuickGSBase Hardtop 2-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick GS Differential Cover
1972BuickGSBase Hardtop 2-Door5.7L 5733CC 350Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick GS Differential Cover
1972BuickGS 455Base Convertible 2-Door7.5L 455Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72 Buick GS 455 Differential Cover
1972BuickGS 455Base Convertible 2-Door7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72 Buick GS 455 Differential Cover
1972BuickGS 455Base Coupe 2-Door7.5L 455Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72 Buick GS 455 Differential Cover
1972BuickGS 455Base Coupe 2-Door7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 7.5L 72 Buick GS 455 Differential Cover
1972BuickSkylark350 Coupe 2-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick Skylark Differential Cover
1972BuickSkylark350 Coupe 2-Door5.7L 5733CC 350Cu. In. V8 GAS Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick Skylark Differential Cover
1972BuickSkylark350 Sedan 4-Door5.7L 350Cu. In. V8 GAS OHV Naturally AspiratedLocation : Rear -- For 8Cyl 5.7L 72 Buick Skylark Differential Cover
Portions of the information contained in this table have been provided by jcwhitney

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Anticipated Ship Out Time
Same day - 1 business day
Brand
Proform
Fitment Type
Performance/Custom
Interchange Part Number
1973 1972 1971 Chevrolet Chevy Camaro Corvette Pontiac Grand Prix
Manufacturer Part Number
66668
Part Name
Differential Cover
Placement on Vehicle
Rear
Superseded Part Number
1973 1972 1971 Chevrolet Chevy Camaro Corvette Pontiac Grand Prix
Universal Fitment
No
UPC
37995666683
Category

Item description from the seller

About this seller

Martin's Car-Parts

98.7% positive feedback1.2M items sold

Joined Mar 2008
Usually responds within 24 hours

Detailed seller ratings

Average for the last 12 months
Accurate description
4.8
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (331,093)

All ratingsselected
Positive
Neutral
Negative
  • l***l (180)- Feedback left by buyer.
    Past month
    Verified purchase
    I’m not sure what happened to my order that I got the incorrect color but the seller corrected the error in record time with zero problems. Great customer service and communication can’t say enough for the seller. But instant communication with lightning fast correction which might’ve been my fault. Good customer service.
  • 7***o (136)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Excellent seller....The item was shipped and packaged very well and arrived as advertised before the expected delivery date. Although....I thought the purchasing price was a little overpriced, it is an OEM new part, so - I can accept the value for the OEM part. Thank you for a great Ebay transaction!
  • d***7 (51)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Went with this seller because he showed the most interest! Good pictures! Fast service! Best value for the money! Everything arrived in good shape well packaged! Appreciated the fast response and the updates!

Product ratings and reviews

4.9
21 product ratings
  • 19 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Top favorable review

    Heavy Duty

    Rear differential cover looks nice really thick and heavy duty. I haven’t installed it yet but it looks great. Just make sure you order the gasket because it does come with it.

    Verified purchase: YesCondition: NewSold by: jegsperformance

  • Get one for your build

    This is a very nice looking and well made cover. I was surprised that it's recommended not to use a gasket. Only RTV.

    Verified purchase: YesCondition: NewSold by: 1epc

  • Brand new, in the box....well satisfied.

    Brand new, in the box....well satisfied.

    Verified purchase: YesCondition: NewSold by: carpartsretailer

  • Proform 66668 Perfect Launch Aluminum Rear Axle Cover End GM 10 Bolt 8.2 8.5 8.6

    looks like it will fit. haven't rebuilt the rear end yet so I haven't encountered any issue if any.

    Verified purchase: YesCondition: NewSold by: 1epc

  • Good value. Just needs a few improvements.

    Beefy cast piece with bearing stabilizers. Looks good. Paint not very durable. Needs to be powder coated. Bolts were not long enough for my GM 10 bolt. Comes with metric also??? Went and got 10, 5/16-18 x 1.5" SS bolts - just right.

    Verified purchase: YesCondition: NewSold by: 1epc