SKU: 47891474704

1977-1990 GM B-Body Crossmember 4L80-E and 4L85-E RCB3-4L80

$190.44 $211.60
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

1977-1990 GM B-Body Crossmember 4L80-E and 4L85-E RCB3-4L80Fits GM B Body Models Fits Years: 1977 1990 Fits Transmissions: 4L80E, 4L85E A new transmission mount is recommended. P N: GMTM GFPP For Vehicles with LS Engines Adjustable Mounts GF GMATM GFPP might be needed Finish: Black Powder Coated Mounting Hardware: Included! Applications: Year Make Model Transmission Fitment Notes 1980 1989 Buick Electra Estate Wagon 4L80 E or 4L85 E Station Wagon Models Only! 1977 1989 Buick Estate Wagon 4L80 E or 4L85 E

  • Fits GM B-Body Models 
  • Fits Years: 1977-1990
  • Fits Transmissions: 4L80E, 4L85E
  • A new transmission mount is recommended. P/N: GMTM-GFPP
  • For Vehicles with LS Engines Adjustable Mounts GF-GMATM-GFPP might be needed
  • Finish: Black Powder Coated
  • Mounting Hardware: Included!

Applications:

Year Make Model Transmission Fitment Notes
1980-1989 Buick Electra Estate Wagon 4L80-E or 4L85-E Station Wagon Models Only!
1977-1989 Buick Estate Wagon 4L80-E or 4L85-E Station Wagon Models Only!
1977-1985 Buick LeSabre 4L80-E or 4L85-E Sedan Models Only!
1980-1990 Buick LeSabre Wagon 4L80-E or 4L85-E Station Wagon Models Only!
1977-1978 Buick Riviera 4L80-E or 4L85-E Two Door Models Only!
1978-1981 Chevrolet Bel Air 4L80-E or 4L85-E Sedan Models Only!
Canadian Models Only!
1977-1979 Chevrolet Bel Air Wagon 4L80-E or 4L85-E Station Wagon Models Only!
Canadian Models Only!
1977-1990 Chevrolet Caprice 4L80-E or 4L85-E Sedan Models Only!
1977-1990 Chevrolet Caprice Estate 4L80-E or 4L85-E Station Wagon Models Only!
1977-1985 Chevrolet Impala 4L80-E or 4L85-E Sedan and Wagon Models Only!
1977-1990 Oldsmobile Custom Cruiser 4L80-E or 4L85-E Station Wagon Models Only!
1977-1985 Oldsmobile Delta 88 4L80-E or 4L85-E Sedan Models Only!
1977-1981 Pontiac Bonneville 4L80-E or 4L85-E Sedan Models Only!
1977-1981 Pontiac Bonneville Safari 4L80-E or 4L85-E Station Wagon Models Only!
1977-1981 Pontiac Catalina 4L80-E or 4L85-E Sedan Models Only!
1977-1981 Pontiac Catalina Safari 4L80-E or 4L85-E Station Wagon Models Only!
1977-1978 Pontiac Grand Safari 4L80-E or 4L85-E Station Wagon Models Only!
1977-1981 Pontiac Laurentian 4L80-E or 4L85-E Sedan Models Only!
Canadian Models Only!
1977-1981 Pontiac Laurentian Safari 4L80-E or 4L85-E Station Wagon Models Only!
Canadian Models Only!
1977-1981 Pontiac Parisienne 4L80-E or 4L85-E Sedan Models Only!
Canadian Models Only!
1983-1986 Pontiac Parisienne 4L80-E or 4L85-E Sedan Models Only!
1977-1981 Pontiac Parisienne Safari 4L80-E or 4L85-E Station Wagon Models Only!
Canadian Models Only!
1983-1986 Pontiac Parisienne Safari 4L80-E or 4L85-E Station Wagon Models Only!
1987-1989 Pontiac Safari 4L80-E or 4L85-E Station Wagon Models Only!


Installation Notes:

  • For vehicles originally equipped with 3/8″ crossmember bolts, open existing holes on the frame to 1/2″. If you prefer to retain 3/8″ fasteners, upgrade the installation hardware to Grade 8 bolts and hardened flat washers.
  • Some minor contact between the floorplan and the crossmember may occur due to body bushing settling and deterioration, or a bowed floor pan. Usually, this is not a problem. A hydraulic floor jack with a wood cushion will correct a bowed floor.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47891474704

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4.1 ★★★★★
Based on 19 reviews
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Product Reviews
S
Verified Purchase
Stephen Capizzi
Port Orchard, US
★★★★★ 5
Great product!
Size: 12 fl. oz. (Pack of 1)
Would recommend pouring oil into container after pouring in and shaking it up, great additive recommended by some old folks but I would have to say it’s just thick as molasses. Used in 2016 FORD F150 5.0 V8
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2025
F
Verified Purchase
F.P.
Phoenix, US
★★★★★ 5
Great product!
Size: 12 fl. oz. (Pack of 1)
My Dad believed in Bardaul and I do to!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2025
R
Verified Purchase
Roberto Heredia
Dallas, US
★★★★★ 5
Inigualable protector del motor
Size: 12 fl. oz. (Pack of 1)
Producto extraordinario para el motor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2024
N
NickU179
Phoenix, US
★★★★★ 5
Great for High Mileage vehicles
Size: 12 fl. oz. (Pack of 1)
Added into my 2014 Dodge Grand Caravan with 100k miles before a family trip and eliminated knock, slow starts and improved our gas mileage by about 10% I think! super easy to add to the oil and very happy with results.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2024
A
Verified Purchase
Angel Esteva
Fort Morgan, US
★★★★★ 5
Great assortment of clips—fits well and saves a trip to the dealer
Color: 40pcs
Picked up this 40-piece set to replace missing/broken push-type retainers on my bumper/fender liner area. The assortment is a solid value—having extras on hand is way cheaper than buying a few at a time locally. The clips I used snapped in securely and held the panel tight without rattles. Tip: match the old clip’s size before installing (hole diameter + stem length). I tested a couple first to confirm fit and then finished the job. For basic trim/under-cover repairs, this is an easy, cost-effective kit to keep in the garage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026

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