SKU: 64080057105

1978-1983 G-Body Crossmember T56 with Frame Extension RCG-T56K

Sale price$209.73 Regular price$233.03
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Description

1978-1983 G-Body Crossmember T56 with Frame Extension RCG-T56KFits Models: GM RWD G Body; Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal, Century, LeMans, Caballero, Bonneville Fits Years: 78 83 Fits Transmissions: T56 Note: The RCG T56 works with both the factory GM T56 as found in the 93 02 Camaro or Firebird, and also with aftermarket T56 transmissions. Some aftermarket T56 versions may require slight crossmember modifications. We recommend a polyurethane transmission mount. The GMTM is sold

  • Fits Models: GM RWD G-Body; Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal, Century, LeMans, Caballero, Bonneville
  • Fits Years: 78-83
  • Fits Transmissions: T56
  • Note: The RCG-T56 works with both the factory GM T56 as found in the 93-02 Camaro or Firebird, and also with aftermarket T56 transmissions.  Some aftermarket T56 versions may require slight crossmember modifications.
  • We recommend a polyurethane transmission mount. The  GMTM is sold separately.
  • G Force has developed a frame extension, GF-FE100 to duplicate this longer frame on the this generation of vehicles. The RCG-T56K is prepackaged with the frame extension.
  • For model years 84-88, the frame extension is not needed. The RCG-T56 crossmember is sold separately. 
  • 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
1982-1983 Pontiac Bonneville
1978-1983 GMC Caballero
1978-1981 Buick Century
1978-1981 Oldsmobile Cutlass Calais
1980-1983 Oldsmobile Cutlass Cruiser
1978-1980 Oldsmobile Cutlass Salon
1978-1983 Oldsmobile Cutlass Supreme
1978-1983 Pontiac Grand Prix
1978-1981 Pontiac LeMans
1978-1983 Chevrolet Malibu
1978-1983 Chevrolet Monte Carlo
1978-1983 Buick Regal
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 64080057105

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Laura Healy
Carnegie, US
★★★★★ 5
So comfy
These pillows are great! So comfy, no neck or back pain. I highly recommend them!
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Reviewed in the United States on May 1, 2026
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Kenenna Oyeka
Belleville, US
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ Incredible Comfort – Like Sleeping in a Luxury Hotel Every Night!
I am beyond impressed with the DIORIS Pillows Queen Size Set of 2! From the moment I laid my head on them, I knew I had found my new favorite pillows. They strike the perfect balance between soft and supportive, making them ideal for back, stomach, and side sleepers like me and my partner. The fluffy down alternative fill feels just like the real thing—plush, breathable, and incredibly comfortable without triggering my allergies. These pillows don’t flatten out overnight either; they maintain their shape and bounce back beautifully each morning. What really stood out to me was the hotel-quality feel. The outer fabric is smooth, skin-friendly, and breathable, helping me stay cool and sweat-free throughout the night. I wake up feeling refreshed, well-rested, and with no neck pain—which is a huge win! If you're looking for affordable luxury, I highly recommend these DIORIS pillows. They’ve completely upgraded my sleep experience, and I’ll definitely be buying another set for the guest bedroom!
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Reviewed in the United States on June 4, 2025
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James Amsler
Charlottesville, US
★★★★★ 5
Pillowd
Color: Blue, Size: Queen Size Set of 2
They are huge and very fluffy queen size pillows, and they’re so comfortable. I’m actually laying on one right now.
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Reviewed in the United States on May 29, 2026
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MDecker
New York, US
★★★★★ 5
Helps you get a good night's rest
Color: Blue, Size: Queen Size Set of 2
These are my favorite pillows. I've had so much neck pain and headaches in the morning. This all stopped once I started using them. They hold up their shape and seem like they are good quality. My husband kept trying to steal my pillow, so I had to order him his own. You won't be disappointed in these pillows, and you'll get much better sleep.
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Reviewed in the United States on May 26, 2026
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AnnMarie Rodriguez
Massapequa, US
★★★★★ 4
Very soft!
Color: Blue, Size: Queen Size Set of 2
I like the softness of these pillows. They are too bulky for me but my husband loves his. I’ve been using a flat pillow for too long. I may just need to adjust to it.
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Reviewed in the United States on May 17, 2026

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