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Description
1984-1988 G-Body Crossmember 4L80 RCG-4L80Fits Models: GM RWD G Body; Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal, Century, LeMans, Caballero, Bonneville Fits Years: 84 88 Fits Transmissions: 4L80, 4L85E We recommend a polyurethane transmission mount. The GMTM is sold separately. If you have a 78 83 vehicle G Force has developed a frame extension, GF FE100 to duplicate the factory driver side longer frame rail. The frame extension is sold separately, or can be purchased in a
- Fits Models: GM RWD G-Body; Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal, Century, LeMans, Caballero, Bonneville
- Fits Years: 84-88
- Fits Transmissions: 4L80, 4L85E
- We recommend a polyurethane transmission mount. The GMTM is sold separately.
- If you have a 78-83 vehicle G Force has developed a frame extension, GF-FE100 to duplicate the factory driver side longer frame rail. The frame extension is sold separately, or can be purchased in a kit, RCG-4L80K, which includes both the crossmember and the frame extension.
- The primary frame change on the 1978-1988 generation of GM G-Body vehicles begins with 1984 models and the implementation of the 2004R transmission which required positioning the crossmember further to the rear of the vehicle. This is evidenced by two sets of frame holes for the crossmember on the driver side of the vehicle.
- Note: Some 1983 Hurst Olds are known to have the 2004R transmission and thus the longer frame rail which does not require the GF-FE100 frame extension that is included in this Kit. Some 1984 El Caminos retained the early frames and do require an GF-FE100 frame extension to run this crossmember.
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984-1986 | Pontiac | Bonneville | |
| 1984-1987 | GMC | Caballero | |
| 1984-1988 | Oldsmobile | Cutlass Supreme | |
| 1984-1987 | Pontiac | Grand Prix | |
| 1984-1988 | Chevrolet | Monte Carlo | |
| 1984-1988 | Buick | Regal |
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Excellent Kindergarten prep
Format: Paperback
My daughter is loving all of the learning exercises and has started feeling more confident heading in to Kindergarten.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Excellent Summer Workbooks - Keeps Kids Engaged and Ready
Format: Paperback
These workbooks have been an absolute lifesaver for keeping my kids on track over the summer! I was looking for a resource that would help them retain what they learned and prepare for the next school year without feeling like a chore, and these deliver perfectly.
What I particularly love is how well **organized they are by days**. This structure eliminates any guesswork and makes it incredibly easy to assign manageable chunks of work each day, which helps to **keep my kids consistently on track**. There's no overwhelm, just steady progress.
The content is engaging, and it genuinely seems to reinforce key concepts in a fun way. We've had **absolutely no complaints** from the kids, which is a huge win for any summer learning material! I highly recommend these workbooks for any parent looking for a structured and effective way to bridge the academic gap during the summer break.
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Reviewed in the United States on May 28, 2025
★★★★★ 5
Fun for my Kindergarteners!
Format: Paperback
This activity book is a fantastic, age-appropriate resource that makes summer learning both fun and effective for Kindergarteners transitioning to 1st grade! The pages are thoughtfully designed with easy-to-follow activities that keep young minds engaged while reinforcing essential skills. The addition of flashcards, stickers, and eBooks takes the learning experience to the next level, making practice feel like playtime.
One of my favorite features is the encouragement of hands-on learning and movement through exciting fitness challenges—because learning shouldn't just be about worksheets! It turns what could be a boring review into an adventure filled with creativity and energy. This workbook truly helps bridge the summer gap while keeping kids motivated and excited for the next school year. A must-have for any little learner’s summer routine!
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Reviewed in the United States on March 19, 2025
★★★★★ 5
Recommend
Format: Paperback
Has been a great learning book
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Reviewed in the United States on February 11, 2026
★★★★★ 4
Teacher approved
Format: Paperback
Great review book to help bridge the learning between Kindergarten and 1st grade. Teacher approved!
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Reviewed in the United States on May 25, 2025
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