These new crossmembers have been redesigned and are less expensive than the previous crossmember & work with engine mounting brackets BHS540 for both the GM LS & Gen-V LT engines. Choose the crossmember based on the transmissions that you want to run in your 1973-1987 C10:

• Crossmember BHS548 fits 4L60E, 4L65E, 4L70E, 4L75E, 6L80E, 8L90E, & 10L80E Transmissions
• Crossmember BHS549 fits 4L80E, and 4L85E Transmissions
• Crossmember BHS550 fits T56, and T56 Magnum Transmissions
• These crossmembers, when used with BHS540, provide the ideal u-joint angles and the best clearance for 3.00 Inch dual exhaust.
• 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 Crossmembers
• 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
• Welded Steel Construction w/ Black Powder Coated Finish
• Provides an Optimum Engine/Transmission Inclination Angle That is Critical to Obtain Suitable U-Joint Working Angles, when installed with BHS540 Engine Mounting Brackets
• Designed in Conjunction with Other Hooker Blackheart C10 Engine Swap Parts to Provide Bolt-in Installation of Hooker LS and LT Swap Manifolds and Exhaust Systems for this Application
• Provides the Highest Clearance Available for up to 3.00 Exhaust System

Details:

• Application: 1973-1987 Chevrolet / GMC C10 Series Truck
• Color: Black
• Emission Code: 6
• Engine: GM Gen III/IV (LS)
• Finish: Black Powdercoated
• Material: Steel
• Motor Type: GM LS, GM LT
• Product Type: Transmission Crossmember
• Transmission: 4L60E, 4L65E, 4L70E, 4L75E, 6L80E
• Type of Component: Crossmember
• Warning: California Proposition 65