GMC Transmission Crossmembers
At Advance Auto, we carry 7 different types of Transmission Crossmembers for your GMC at competitive prices to fit your budget. Save on costs when you find your GMC replacement Transmission Crossmembers with us.
Make sure to compare prices and take a look at the top user reviewed Transmission Crossmembers that fit your GMC. The ratings and reviews for these aftermarket GMC Transmission Crossmembers really help you make the right decision.
Whether you’re a do-it-yourselfer or trained auto tech, you’ll appreciate the convenience of home or business delivery, or picking up your Transmission Crossmembers at the nearest Advance Auto Parts location.
Compare 7 GMC Transmission Crossmembers
Search our full catalog of aftermarket GMC Transmission Crossmembers below. Make sure to check for user reviews of Transmission Crossmembers to learn which worked the best for our customers.
Dorman – Transmission Crossmember (Part No.926-980)
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$257.99
Transmission shifting on its mountings? A rusted transmission support crossmember can allow excess movement in the driveline. Replacing the crossmember while retaining the existing frame restores performance and keeps the vehicle on the road.
Product Features:
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Product Features:
- Direct replacement – this transmission crossmember installs in place of the original frame member to secure the transmission in its place
- No welding required – this transmission crossmember bolts in place and requires no cutting or welding
- Quality materials – stamped steel construction with epoxy-coat finish for durability
- Vehicle tested – has undergone extensive on-vehicle testing to ensure trouble-free fit and installation
Hooker BlackHeart – Hooker BlackHeart Transmission Crossmember – G-Body – LS or LT Swap (Part No.12644HKR-1)
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$384.99
12656HKR – 4L80/85 Transmission Adapter.
Product Features:
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Product 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
Hooker BlackHeart – Transmission Cross member (Part No.71222024HKR-2)
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$373.99
This BlackHeart LS/LT engine swap transmission cross member is for 1963-1972 GM C10 trucks. It is designed specifically for use with Hooker Blackheart engine swap brackets and exhaust components to simplify your LS/LT swap. Provides bolt-in installation of 4L60E, TH350, 6L80 or 700R4 transmission and up to 3″ exhaust without hanging below frame rails.
Product Features:
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Product Features:
- Easy to install, bolt in Cross member for use with 4L60E, TH350, 6L80, 700R4
- Designed using CAD (computer aided design) modeling/FEA (finite element analysis) analysis for optimal fitment, strength, weight, safety and appearance
- Welded steel construction for superior strength
- Provides an optimum engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker BHS511 engine mounts
- Designed in conjunction with Hooker BlackHeart C10 engine swap parts to provide bolt-in installation of BlackHeart LS and LT swap manifolds, headers and exhaust systems
- Provides the highest clearance available for up to 3″ exhaust systems eliminating any lowering concerns or issues
Hooker BlackHeart – Transmission Cross member (Part No.71222024HKR-1)
from
$357.99
This BlackHeart LS/LT engine swap transmission cross member is for 1963-1972 GM C10 trucks. It is designed specifically for use with Hooker Blackheart engine swap brackets and exhaust components to simplify your LS/LT swap. Provides bolt-in installation of 4L80 or TH400 transmission and up to 3″ exhaust without hanging below frame rails.
Product Features:
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Product Features:
- Easy to install, bolt in Cross member for use with 4L80 or TH400 trans
- Designed using CAD (computer aided design) modeling/FEA (finite element analysis) analysis for optimal fitment, strength, weight, safety and appearance
- Welded steel construction for superior strength
- Provides an optimum engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker BHS511 engine mounts
- Designed in conjunction with Hooker BlackHeart C10 engine swap parts to provide bolt-in installation of BlackHeart LS and LT swap manifolds, headers and exhaust systems
- Provides the highest clearance available for up to 3″ exhaust systems eliminating any lowering concerns or issues
Hooker BlackHeart – Transmission Cross member (Part No.71222024HKR)
from
$357.99
This BlackHeart LS/LT engine swap transmission cross member is for 1963-1972 GM C10 trucks. It is designed specifically for use with Hooker Blackheart engine swap brackets and exhaust components to simplify your LS/LT swap. Provides bolt-in installation of T56 Transmission and up to 3″ exhaust without hanging below frame rails.
Product Features:
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Product Features:
- Designed for use with all Hooker Blackheart 63-72 C10 LS/LT swap parts
- Easy to install, bolt in Cross member for use with GM T56 transmissions
- Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
- Welded steel construction
- Provides an optimum engine/transmission inclination angle (when used with No: BHS511 engine mounts) that is critical to obtaining suitable U-joint working angles
- Designed in conjunction with other Hooker Blackheart C10 engine swap parts to provide bolt-in installation of Hooker LS and LT swap manifolds, headers and exhaust systems for this application
Hooker BlackHeart – Transmission Cross member (Part No.BHS550)
from
$306.99
The Hooker BlackHeart BHS550 is a purpose-built transmission cross member designed for GM LS and Gen V LT engine swaps into classic GM trucks and SUVs. It’s engineered to support 700R4, 4L60, 4L60E, and 4L65E transmissions, offering a bolt-in solution with excellent exhaust clearance and proper driveline geometry.
Product Features:
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Product Features:
- Revised Design with Lower Pricing
- Fits 1973-1987 C10/15 2WD, 1979-1987 C20 2WD & 1973-1982 Blazer/Jimmy 2WD
- LS/Gen-V LT Swap Transmission Cross members
- Designed for Use with All 1973-1987 C10 LS/Gen-V LT Swap Components
- Use with BHS540 Engine Mounting Brackets (Also Works with 12621HKR)
- Designed Using CAD Modeling/FEA Analysis for Optimal Strength, Weight, Safety & Appearance
Hooker BlackHeart – Transmission Cross member (Part No.BHS549)
from
$306.99
The Hooker BlackHeart BHS549 is a heavy-duty transmission cross member engineered for GM LS and Gen V LT engine swaps into classic GM trucks and SUVs (1973-1987 C10/C20, 1973-1982 Blazer/Jimmy). It’s specifically designed to support 4L80E and 4L85E transmissions, offering bolt-in installation, optimal driveline angles, and maximum exhaust clearance.
Product Features:
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Product Features:
- Revised Design with Lower Pricing
- Fits 1973-1987 C10/15 2WD, 1979-1987 C20 2WD & 1973-1982 Blazer/Jimmy 2WD
- LS/Gen-V LT Swap Transmission Cross members
- Designed for Use with All 1973-1987 C10 LS/Gen-V LT Swap Components
- Use with BHS540 Engine Mounting Brackets (Also Works with 12621HKR)
- Designed Using CAD Modeling/FEA Analysis for Optimal Strength, Weight, Safety & Appearance
Transmission Crossmembers for Other GMC Models
Which GMC model are you looking to repair? We carry OEM and aftermarket parts for nearly all GMC models from top brands. Read reviews, assess ratings, and compare prices to keep your GMC running right.
