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  • Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
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Load image into Gallery viewer, Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Load image into Gallery viewer, Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Load image into Gallery viewer, Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Load image into Gallery viewer, Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10
Load image into Gallery viewer, Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10

Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10

by Proform
• SKU: ds_BCHW_66668
• Product Type: Differential Cover
2 sold in last 8 days
$288.99
Inventory:
$288.99
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Guaranteed Fitment

Always the correct part

Added Value

Performance matched parts

In-House Experts

We know our products

Nationwide Delivery

Economy shipping

Reinforced lightweight aluminum rear end covers designed to strengthen the rear housing case in heavy torque situations. The PERFECT LAUNCH logo is prominently displayed on a precision milled surface. Each cover includes two bolts to stabilize bearing main caps, fluid capacity and magnetic drain plugs, and mounting bolts. All covers have a black painted finish.

Black Finish

Fits: 1974-1975 Buick Apollo, 1973-1977 Buick Century, 1973-1981 Buick Electra, 1977-1979 Buick Estate Wagon, 1971-1972 Buick GS, 1971-1972 Buick GS 455, 1973-1981 Buick LeSabre, 1973-1981 Buick Regal, 1977 Buick Riviera, 1971-1979 Buick Skylark, 1971-1975 Chevrolet Bel Air, 1971-1972 Chevrolet Biscayne, 1972 Chevrolet Brookwood, 1978 Chevrolet C10 Suburban, 1977-1978 Chevrolet C20 Suburban, 1971-1980 Chevrolet Camaro, 1971-1981 Chevrolet Caprice, 1971-1973 Chevrolet Chevelle, 1971-1978 Chevrolet Corvette, 1970-1977 Chevrolet El Camino, 1972-1974 Chevrolet G10 Van, 1971-1974 Chevrolet G20 Van, 1971-1981 Chevrolet Impala, 1977-1978 Chevrolet K10 Suburban, 1978 Chevrolet K20 Suburban, 1971-1972 Chevrolet Kingswood, 1971-1973 Chevrolet Monte Carlo, 1971-1979 Chevrolet Nova, 1971-1972 Chevrolet Townsman, 1971-1981 Oldsmobile 98, 1971-1981 Oldsmobile Custom Cruiser, 1971-1977 Oldsmobile Cutlass, 1975-1976 Oldsmobile Cutlass Salon, 1971-1977 Oldsmobile Cutlass Supreme, 1971-1981 Oldsmobile Delta 88, 1971-1972 Oldsmobile F85, 1973-1979 Oldsmobile Omega, 1971-1981 Pontiac Bonneville, 1971-1981 Pontiac Catalina, 1971-1981 Pontiac Firebird, 1971-1973 Pontiac GTO, 1975-1977 Pontiac Grand LeMans, 1971-1977 Pontiac Grand Prix, 1971-1978 Pontiac Grand Safari, 1971-1975 Pontiac Grandville, 1971-1977 Pontiac LeMans, 1971-1977 Pontiac Ventura

Please review Specifications and the detailed fitment table for notes and exceptions.

customers are viewing this product
Proform 66668 Alum for Select Buick Apollo, Buick Century, Buick Electra, Buick Estate Wagon, Buick GS, Buick GS 455, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Chevrolet Bel Air, Chevrolet Biscayne, Chevrolet Brookwood, Chevrolet C10

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Do you offer wholesale or jobber pricing?

Yes. Wholesale pricing is available for legitimate businesses that provide a valid business number or equivalent proof. Ongoing purchase volume is required to maintain discount eligibility. One-time personal buyers aren’t eligible.

Will this part fit my vehicle?

If a product page clearly lists fitment for your vehicle and the description leaves no reasonable doubt, we’ll cover the cost of return if it doesn’t fit. Exclusions apply if prior modifications cause the issue. When browsing self-serve, you’re responsible for confirming compatibility by checking manufacturer fitment data and notes. If unsure, contact us before ordering and we’ll verify it for you.

Do you offer technical support or installation advice?

We help where possible on a case-by-case basis. Most manufacturers include detailed instructions and tech support contacts. Because our catalog spans hundreds of brands, we can’t provide every torque spec or procedure, but we’ll connect you with the manufacturer if needed.

Do you offer price matching?

We don’t guarantee price matching, but we’re happy to review a legitimate in-stock offer from another Canadian retailer. The comparison must include all costs such as product price, shipping, taxes, and fees, and the item must be identical and available for immediate purchase. We won’t lose money to match unsustainable or out-of-stock pricing.

Can I exchange an item?

Yes. In-store exchanges happen on the spot when stock is available. For shipped orders, the original item must be returned first. Once received and inspected, we can issue a store credit toward the correct part or replacement. We can’t send a second item while the first is still in your possession without payment for both.

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All prices on the site are before tax. GST, HST, or PST is calculated at checkout based on your shipping address..

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