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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22
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Description
1977-1990 B-Body Crossmember RCB3-400Fits Models: Caprice, Impala, LeSabre, Oldsmobile 88, Bonneville, Parisienne, Catalina Fits Years: 77 90 Fits Transmissions: TH400 Short Tail, 2004R, 700R4 with B Body tailshaft Mount For Classic B Body builders, we've designed a direct bolt in transmission crossmember to accommodate both a 2004R or TH400 short tail transmissions, as well as a 700R4 with the tailshaft transmission mount. One crossmember, both transmissions! We accommodate both by
- Fits Models: Caprice, Impala, LeSabre, Oldsmobile 88, Bonneville, Parisienne, Catalina
- Fits Years: 77-90
- Fits Transmissions: TH400 Short Tail, 2004R, 700R4 with B-Body tailshaft Mount
- For Classic B-Body builders, we've designed a direct bolt-in transmission crossmember to accommodate both a 2004R or TH400 short tail transmissions, as well as a 700R4 with the tailshaft transmission mount. One crossmember, both transmissions!
- We accommodate both by using a second set of mounting holes on the crossmember which allows you to position the crossmember in two different locations while still using the factory crossmember mounting locations.
- No drilling, cutting, grinding, or welding is required.
- When considering the popular 700R4 or 4L65E, there are two basic transmission mount locations. One version utilizes a transmission mount directly behind the transmission pan on the transmission case. With the other version the transmission mount is located further forward and bolts to the tailshaft housing. It is crucial that you properly determine which mount location your 700R4 / 4L65E utilizes. The RCB3-400 is designed to accommodate the longer tailshaft mount. If you have the shorter case mount transmission, you will need to purchase our RCB3-700 crossmember.
- We recommend a polyurethane transmission mount. The GMTM is sold separately.
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1977-1981 | Pontiac | Bonneville | |
| 1977-1990 | Chevrolet | Caprice | |
| 1977-1981 | Pontiac | Catalina | |
| 1977-1990 | Oldsmobile | Custom Cruiser | |
| 1980-1983 | Buick | Estate Wagon | |
| 1977-1985 | Chevrolet | Impala | |
| 1977-1985 | Buick | LeSabre | |
| 1983-1986 | Pontiac | Parisienne | |
| 1977-1978 | Buick | Riviera | |
| 1987-1989 | Pontiac | Safari |
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
4.9 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Not left stranded anymore!
Color: Vivid Orange
I bought two of these tire repair kits to put one in each vehicle. I also bought two new jacks for each vehicle. Generally them jacks that come with your vehicle aren’t no good anyways. I had a flat tire way out in the country and I couldn’t get my tire off, with that cheap wrench. I couldn’t get the car jacked up anyways. left me stranded. Not anymore I got two new four-way lug wrenches two new jacks and a tire, patch kit, and two of them little air compressors that you hook up to your cigarette lighter..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 5
Excelente kit, Se sienten premium
Color: Grey
Excelente kit de herramientas de pinches, Cada herramienta se siente de buena calidad a diferencia de otras marcas me gustó este Kit por su precio y hermoso estuche.
Lo recomiendo 100%
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Amazon sell a fine selection of replacement fiberized rubber fiber plugs & cement. Read the reviews.
Color: Vivid Orange
This is the only kit you will ever need at roadside to plug a tire & be on your way.
This kit has it all. I'm a retired long haul trucker. This is my preferred plug kit. I have
stored one of these in all of my trucks & my wife's SUV. You could spend so much
more for other plug kits. But this one works. The price reflects the quality of both
the tools & all the other essentials you will ever need. I recommend you buy this one.
The money you save can be used elsewhere.
Note: Amazon sell a fine selection of replacement fiberized rubber plugs & rubber
cement. This is where you don't want to skimp on cheap-O plugs elsewhere.
These two items are the most important items in the entire system. Be prepared!
Always read the reviews & know the sellers reputation before you purchase things.
///////////////
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
★★★★★ 3
Plugs
Color: Grey
The plugs didn’t work it leaked. Needed to buy bigger plugs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 4
ALMOST perfect.
Color: Vivid Orange
Item is as advertised. Durable, and the tools are useful for more than just regular plugs. It comes with the snips which was great as well as actual valve stem replacements which I thought were pretty nice. Only complaint are the plug strips themselves. If the hole is from a bolt or something larger than the average screw, it may take two of them to completely stop the leak. Hope this helped.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
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