Hooker Blackheart LS/LT Swap Transmission Crossmember Chevy C10 73-87/ 4L80E And 4L85E Transmissions

Finish your LS or Gen-V LT swap with this Hooker BlackHeart transmission crossmember for 1973-1987 C10s (BHS549). Designed specifically for 4L80E and 4L85E transmissions, this redesigned crossmember delivers strength, proper driveline geometry, and true bolt-in installation.

Features and Benefits:
- Fits 1973-1987 Chevy/ GMC C10/C15/C20 
- Compatible with 4L80E and 4L85E transmissions
- Designed for BHS540 engine mounts (MMK42)
- Clears dual exhaust up to 3”
- Optimized engine/trans inclination angles
- Maintains proper U-joint geometry
- Bolt-in installation design
- CAD-designed and FEA-validated
- Welded steel construction
- Black powder coated finish

Constructed from welded steel and finished in a durable black powder coat, this crossmember supports up to 3.00" dual exhaust systems without sacrificing ground clearance. It is the ideal foundation for a clean, professional LS/LT drivetrain installation in your classic squarebody truck.

Vehicle Fitment:
- 1973-1987 Chevy/ GMC C10/C15
- 1979-1987 Chevy C20 2WD
- 1973-1982 Chevy/ GMC Blazer/Jimmy 2WD

Please Note: Designed for use with Hooker BlackHeart BHS540 (CJ Part Number: MMK42) engine mounting brackets (also compatible with 12621HKR (CJ Part Number: EMP1))