Gen III Hemi Engine Mounting Brackets for 1997-2006 Jeep Wrangler w/ 6-Cylinder Frame. Add some serious torque and power to your Jeep Wrangler TJ with a Gen III Hemi engine swap. These engine-mounting brackets are one part of a fully engineered swap system that provides maximum component clearances, and ideal drivetrain geometry and clearance. These engine mounts work together with the stock skid plate / transmission crossmember to mount the transmission & stock NP231J transfer case. The Gen III Hemi 5.7L factory truck oil pan & accessory drive system are recommended for this swap (these parts come on the donor engine when using the 2003-2008 5.7L Hemi truck engine). The 5.7L truck engine is an ideal engine choice for the Wrangler since it makes torque at a low RPM, right where it is needed for off-road use.. Fits 1997-2006 Jeep Wrangler - Fits Vehicles that Came From the Factory with a 6-Cylinder Engine._x000D_ _x000D_ Optimized for Use with 2003-2008 Dodge Ram 5.7L Truck Engine & 545RFE Transmission & NP231J Transfer Case. The factory 5.7L Rear Sump Oil Pan & Truck Accessory Drive System is Ideal for this Engine Swap. Suitability for Use With 2009-up Truck Hemi Engines Has Not Been Validated._x000D_ _x000D_ Use BHS521 with 545RFE Transmission. 46RE Transmission can also be used, but will require a fabricated transmission-mounting bracket to attach it to the skid plate / crossmember._x000D_ _x000D_ Usage With Car-Based Gen lll Hemi Engines Will Encounter Alternator Interference With the Right Side Frame Rail._x000D_ _x000D_ Requires: BHS514 Gen III Hemi Engine Mount Clamshell (2 required), 71221017HKR (red) or 71221016HKR (black) Poly Engine Mount Inserts (2 required), and Engine Mount Bolts 71223015HKR (1 required)._x000D_ _x000D_ Requires Welding