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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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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:
- 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
4.8 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Simple and cute
Size: 2pcs, Color: C. Black, Size: 2pcs, Color: C. Black
Easy installation. Seems sturdy as of right now that I’ve had it for about a month. Goes really well with my bathroom theme so i am content with my purchase 😊 not too bulky or big.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Nice touch to my bathroom
Size: 3pcs, Color: A. Brown
I’ve had these up a couple months now and they’ve really added a nice look to the bathroom! Easy to put up, sturdy, not cheap looking.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Great price for a great product
Size: 3pcs, Color: A. Brown, Size: 3pcs, Color: A. Brown
Love! They totally changed the game for the look of my bathroom and perfectly hold the plants I want to get a little more humidity ❤️
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Reviewed in the United States on May 4, 2026
★★★★★ 4
Attractive, easy to install, not the strongest
Size: 3pcs, Color: A. Brown, Size: 3pcs, Color: A. Brown
We bought these shelves as part of a bathroom refresh. They installed easily, and were easy to align because of the included little bubble level. The shelves came with plenty of screws and mollies, especially because we only wound up installing two out of three. I like the storage basket, which holds a few rolls of toilet paper nicely. The shelves fit snuggly on the floating rods, especially after fully installed.
The one downside is they feel a little cheap. The shelf does not feel super sturdy, so I wouldn't put anything really heavy on it. For bathroom decorations, it looks great, but this is not a system for storing lots of books.
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Reviewed in the United States on September 8, 2025
★★★★★ 5
Great set for the price!
Size: 3pcs, Color: A. Brown
Really nice shelf set for the price. The shelves look great, were easy to install, and are sturdy. I love the flexibility you have in setting the height of each shelf and the distance from one shelf to another if placing them together on a wall. You can arrange them how you'd like - straight under one another, staggered, on a diagonal. And the fact that you can place them on multiple walls is a great feature as well. Really happy with this purchase.
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Reviewed in the United States on February 14, 2026