SKU: 98853363006

Fits 1979-1988 Chevrolet Monte Carlo; Transmission Crossmember-G-Body-LS - 12644

$179.97 $199.97
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Description

Fits 1979-1988 Chevrolet Monte Carlo; Transmission Crossmember-G-Body-LS - 12644Making it possible to fit almost any GM transmission into your G Body alongside an LS or LT, this updated transmission crossmember should be used with an aftermarket urethane transmission mount such as the Hooker Blackheart 71223029HKR or 71223030HKR or equivalent. Due to the unique design geometry of this transmission crossmember, attempts to install it with headers and or engine mounting plates brackets other than those developed by HOOKER for this

Making it possible to fit almost any GM transmission into your G-Body alongside an LS or LT, this updated transmission crossmember should be used with an aftermarket urethane transmission mount such as the Hooker Blackheart 71223029HKR or 71223030HKR or equivalent. Due to the unique design geometry of this transmission crossmember, attempts to install it with headers and/or engine mounting plates/brackets other than those developed by HOOKER™ for this application will more than likely not be successful. When used with the related Hooker™ 12643HKR or BHS5179 engine mounting bracket kit, this CAD designed transmission crossmember will replicate the stock small block Chevy engine/transmission inclination angle and eliminate or minimize the need to adjust the rear pinion angle in stock to moderately lowered chassis applications. Depending on the transmission, the following part numbers will be necessary: *No additional adapter needed for TH400/200R4/T-56/Magnum. TH350 Transmissions can reuse the factory transmission crossmember, but the slots in the center of the crossmember will need to be elongated in the forward direction. 12655HKR - 4L60/65/70/75 Transmission Adapter 12656HKR - 4L80/85 Transmission Adapter BHS5181 - 10L80/10L90 Car Transmission Adapter - must be used with BHS5182 (for G-Body) BHS5182 - 6L80/90, 8L45/80/90, 10L80/90 Transmission Adapter BHS5183 - Tremec TKX 5-Speed Transmission Adapter


Features:

  • This LS and LT Swap Crossmember for the GM G-Body has some very minor design updates & has been updated from 12644HKR to part number 12644HKR-1
  • Facilitates installation of a 4L60/4L65/4L70/4L80/TH400/2004R/T56/T56 behind an LS engine in 78-88 GM A/G Body applications (may require add-on bracket, see installation notes)
  • Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
  • Welded steel construction
  • Provides an optimized engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker 12643HKR engine mounts
  • Designed in conjunction with other Hooker BlackHeart GM A/G-Body engine swap brackets to provide bolt-in installation of Hooker LS swap manifolds, headers and exhaust systems for this application
  • Provides the highest clearance available for up to 3" dual exhaust system routing

Specs:

Brand Hooker BlackHeart
Color Black
Emission Code 5
Engine GM Gen III/IV (LS)
Finish Black Powdercoated
Material Steel
Product Type Transmission Crossmember
Sale Category Engine Swap Parts
Transmission 200R4
Transmission 4L60E
Transmission 4L65E
Transmission 4L70E
Transmission 4L75E
Transmission 4L80E
Transmission 4L85E
Transmission T56 GM
Transmission T56 Magnum GM
Transmission TH400
Type of Component Crossmember

Application:

Year Make Model Submodel
1979-1988 Chevrolet Monte Carlo Base
1986-1988 Chevrolet Monte Carlo LS
1983-1988 Chevrolet Monte Carlo SS
1978-1988 Oldsmobile Cutlass Calais Base
1988 Oldsmobile Cutlass Calais GT
1988 Oldsmobile Cutlass Calais International
1988 Oldsmobile Cutlass Calais SL
1982-1988 Oldsmobile Cutlass Ciera Base
1982-1988 Oldsmobile Cutlass Ciera Brougham
1988 Oldsmobile Cutlass Ciera International
1982-1988 Oldsmobile Cutlass Ciera LS
1986-1988 Oldsmobile Cutlass Ciera S
1986-1988 Oldsmobile Cutlass Ciera SL
1978-1988 Oldsmobile Cutlass Supreme Base
1988 Oldsmobile Cutlass Supreme Classic
1988 Oldsmobile Cutlass Supreme Classic Brougham
1988 Oldsmobile Cutlass Supreme Indy 500 Pace Car
1988 Oldsmobile Cutlass Supreme International
1988 Oldsmobile Cutlass Supreme SL
1978-1988 Pontiac Grand Prix Base
1984-1988 Pontiac Grand Prix LE
1988 Pontiac Grand Prix SE
1988 Pontiac LeMans Aerocoupe
1988 Pontiac LeMans Aerocoupe YL
1978-1988 Pontiac LeMans Base
1988 Pontiac LeMans SE
1988 Pontiac LeMans Value Leader
1978-1987 Buick Regal Base
1987 Buick Regal GNX
1984-1987 Buick Regal Grand National
1978-1987 Buick Regal Limited
1978-1987 Chevrolet El Camino Base
1978-1987 Chevrolet El Camino SS
1978-1987 GMC Caballero Base
1978-1987 GMC Caballero Diablo
1980-1987 Oldsmobile Cutlass Base
1987 Oldsmobile Cutlass Eurosport
1987 Oldsmobile Cutlass Lujo
1985-1987 Oldsmobile Cutlass Salon
1985-1987 Oldsmobile Cutlass Ciera GT
1978-1987 Oldsmobile Cutlass Salon Base
1987 Oldsmobile Cutlass Supreme 442
1978-1987 Oldsmobile Cutlass Supreme Brougham
1981-1987 Pontiac Grand Prix Brougham
1983-1986 Buick Regal T-Type
1978-1986 Chevrolet El Camino Conquista
1981-1986 GMC Caballero Amarillo
1983-1986 Oldsmobile Cutlass Ciera ES
1985-1986 Oldsmobile Cutlass Ciera Holiday
1978-1986 Oldsmobile Cutlass Salon 442
1978-1986 Pontiac Bonneville Base
1978-1986 Pontiac Bonneville Brougham
1984-1986 Pontiac Bonneville LE
1984-1985 Oldsmobile Cutlass Ciera Cruiser
1984-1985 Oldsmobile Cutlass Ciera Cruiser LS
1981-1985 Oldsmobile Cutlass Supreme LS
1983-1984 Oldsmobile Cutlass Calais Hurst
1982-1983 Buick Regal Estate Wagon
1978-1983 Chevrolet Malibu Classic
1983 Chevrolet Monte Carlo CL
1980-1983 Oldsmobile Cutlass Cruiser Base
1978-1983 Pontiac Grand Prix LJ
1982 Buick Regal Limited Turbo
1978-1982 Buick Regal Sport
1979-1981 Chevrolet El Camino Royal Knight
1978-1981 Chevrolet Malibu Base
1978-1981 Chevrolet Malibu Classic Landau
1978-1981 Chevrolet Monte Carlo Landau
1981 GMC Caballero Conquista
1981 GMC Caballero Royal Knight
1980-1981 Oldsmobile Cutlass Brougham
1980-1981 Oldsmobile Cutlass LS
1981 Oldsmobile Cutlass Supreme
1980-1981 Oldsmobile Cutlass Cruiser Brougham
1978-1981 Pontiac Bonneville Safari
1978-1981 Pontiac LeMans Safari
1978-1980 Chevrolet Malibu Classic Estate
1979-1980 Chevrolet Malibu Classic Sport
1979-1980 Chevrolet Malibu Estate
1979-1980 Chevrolet Malibu Sport
1978-1980 Chevrolet Monte Carlo Sport
1978-1980 GMC Caballero Laredo
1978-1980 Oldsmobile Cutlass Salon Brougham
1978-1980 Pontiac Grand Prix SJ
1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1978-1979 Oldsmobile Cutlass Vista Cruiser
1979 Oldsmobile Cutlass Vista Cruiser Brougham
1979 Oldsmobile Cutlass Salon Hurst
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 98853363006

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4.5 ★★★★★
Based on 1706 reviews
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Product Reviews
D
Verified Purchase
Dawn Tibbetts
Carnegie, US
★★★★★ 5
Hard to Destroy
Style: Bunny
My puppy hasn’t been able to destroy it yet. All other toys have only lasted about 10 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
A
Verified Purchase
Amazon Dot Comment
Pawtucket, US
★★★★★ 1
Torn to shreds by a puppy.
Style: Bunny
Torn to shreds by a puppy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
A
Verified Purchase
April
Lexington, US
★★★★★ 5
So many squeakers!
Color: Squeaker Matz Gator, Size: X Large (Pack of 1)
I have 3 golden retrievers. They love this toy. While the head came off because they played tug-o-war with it, the rest has held up mostly for 5-6 months. At this point sometimes a squeaker will pop out. There are so many squeakers in this toy! However, they still use it for tug-o-war, I am surprised it has lasted this long. There is only stuffing in the head.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
L
Verified Purchase
L. Beck
West Palm Beach, US
★★★★★ 5
Cute, durable toy.
Color: Squeaker Matz Gator, Size: X Large (Pack of 1)
It's about as durable as you can expect a stuffed animal to be. I have two new puppies who are still teething and they love these things. I got the Kyjen sheep mat version (it's a square shape, rather than the two rows of squeakers) for the little girl. Both dogs sleep with it in their crate and we take them on trips with us. I've gone so far as to open up the toy and replace the broken squeakers (costs about 5$ for 30 large squeakers). The rest of the toy is fine. Our german shepherd puppy absolutely loves the rattle that's located in the head of the gator as well. The rattle also helps initially getting the dog engaged with chewing on the toy rather than your clothing or furniture. Then they discover the squeakers and it's endless entertainment and a good distraction for your dogs. I haven't had any problems with the thin, decorative material that's represent the teeth, claws and back fins. It's a slightly thicker felt that's soft and flimsy. Honestly, I'm not worried about it. Even if they were to eventually chew these off, they're not a choking hazard. Our little guy has thrown up solid pieces of kibble that are larger and harder than this. Seriously now, common. The eyes are sewn into the head, so there's no risk of pulling them off and swallowing. I toss these in the washer on a gentle cycle to clean off the slobber and dirt about once every couple weeks and the squeakers are fine, though they sometimes have to dry out to be 100% functional again. It never takes long. Overall, I love the amount of squeakers just due to the breaking problem with have with single squeaker toys. Once they break, the dog loses interest. Which is also a nice way to train the dogs the difference between the non-squeaking kids toys. The dogs absolutely love this toy and wont sleep without it. When the fabric eventually wears out (not even a slight issue after a few months), I'll be buying another one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 8, 2012
D
Verified Purchase
D. Vanhoose
Battle Creek, US
★★★★★ 5
Great Toy, HUGE, small dog loves,
Color: Squeaker Matz Gator, Size: X Large (Pack of 1)
For the price this is my favorite toy! My 4 lb Chihuahua LOVES this thing. He is smaller than it by a long shot, yet he loves to parade this around, showing how big he is and can handle this huge GATOR. LOL. Friends come up to the porch, and he runs back to grab his GATOR to bring it up for them to see. Only thing with these toys - for my dog - we have several of these he loves - he cannot make them squeak. He jumps on them, chews on them, but just doesn't have the power. That being said, think about it, he loves the things, I mean LOVES. Sleeps with them, parades them out, fights with them when he's alone, has a great time - .... Evidently, it's me - I MISS THE SQUEAK! I watch him, and root for him, and every now and then (rare), I hear he got a squeak. Still, he doesn't care! So.... interactive time! I go out and play with him and Mr. GATOR, and I make it squeak, and we all have EXTRA fun. Note, my little guy is what they call an EXTREMELY AGGRESSIVE CHEWER. He chews in his sleep (kidding). He's really a tough chewer. He however, uses these more for wrestling, and attacking, and carrying around and sleeping on, etc. So none of ours have tears in them, though he does attack and chew all of it - I think these products are super wonderful, and I have to buy several more, like the hide-a-toy ones (beehive, squirrel, etc.) because I know the quality, I know my Chihuahua loves them to pieces - while he hasn't actually been able to render them in pieces! Win-win for us. You decide what your dog is like. Mine has his snoopy blanket and a huge victory in his mind over this large GATOR - his friend all day long.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 16, 2012

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