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Trans-Dapt Performance Products has been manufacturing products to assist gearheads install an LS engine into a wide variety of classic GM cars and trucks since 2001, when they released universal-use engine adapter plates. Since this early start in the LS engine swap market, Trans-Dapt has dramatically expanded its LS engine swap product line to include precise fitting, application specific engine and transmission mounting components.
This steel transmission crossmember kit has a 3-piece design, with a center segment that can be unbolted for quicker removal of the transmission. The crossmember is made in the USA, and is configured to aid in the installation of a T56, TH400, 4L60, 65, 70 or 4L80E transmission with an LS engine in 1978-81 GM A-Body, or 1982-88 GM G-Body cars that have the driver side frame rail extension for THM200-R4 transmissions. **For vehicles that DO NOT have the factory THM200R4 extensions, the use of Trans-Dapt # 6423 frame rail adapter is required (sold separately).
Unlike many of the kits on market that require you purchase separate adapters to accommodate the different transmission types, this kit includes adapters for any of the transmissions it is designed to fit. While this crossmember may work "ok" with other manufacturer's engine mounts, we recommend this crossmember be used with Trans-Dapt's LS into A/G-Body engine mounts, and Hedman Hedders' 1978-88 GM A/G-Body LS Engine Swap Headers.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1978-1981 | Buick | Century | |
| 1978-1987 | Buick | Regal | |
| 1978-1987 | Chevrolet | El Camino | |
| 1978-1983 | Chevrolet | Malibu | |
| 1978-1988 | Chevrolet | Monte Carlo | |
| 1978-1987 | GMC | Caballero | |
| 1978-1981 | Oldsmobile | Cutlass | |
| 1978-1987 | Oldsmobile | Cutlass Supreme | |
| 1982-1986 | Pontiac | Bonneville | |
| 1981-1987 | Pontiac | Grand Prix |
Due to the automated and highly efficient process, once your order is placed it will be shipped right away and cannot be cancelled in most cases. Please make your selection carefully before clicking the order button!
When you place your order before 3pm central, it will be processed and shipped the same business day.
If the part is not a freight item and shipping with the continental United States, your shipping is free.
You may request a change to your order, provided your order has not already been processed and shipped. Please contact us during business hours to change your order or email us at support@raceconsultingagency.com. Please note that response times may vary and sending an email to us with order changes does not guarantee for those changes to be made.
Read more about our shipping policy at the link below.
Our 15-Day free returns policy makes life simple and hassle free.
Read more about our return policy at the link below.
In business and racing for more than 2 decades! Thank you for joining our mission.
We have been in business for more than 2 decades. Our goal is to simply have the largest selection of in-stock parts and the fastest shipping possible. This has helped us fine tune our formula for fast shipments, the best customer service and the industry’s best deals.
Our shop, RCA Garage, installs the parts we sell on a daily basis. If you are local, feel free to contact us for installation or simply come visit our showroom.
Aside from selling and installing parts, we buy the same parts for our cars to use in daily life and motorsports. This is why we feel we have the edge when it comes to parts knowledge.
Here are the most common questions that we get from customers. If you do not see your question or need more information, please contact us.
G FORCE CROSSMEMBERS
Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - TH350 Transmissions - GM G-Body 1978-88 - Each
G FORCE CROSSMEMBERS
Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - 4L60 / 700R4 - GM G-Body 1978-88 - Each
G FORCE CROSSMEMBERS
Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - Frame Extension Included - TH400 Transmissions - GM G-Body 1978-88 - Each
G FORCE CROSSMEMBERS
Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - 8L90 - GM G-Body 1984-88 - Each
G FORCE CROSSMEMBERS
Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - TH400 Transmissions - GM G-Body 1984-88 - Each
