Gen III Hemi Swap NAG1 Transmission Adapter Plate for 1966-1970 Mopar B-Body;Engineered Transmission Adapter Plates Works Together w/ Hooker Blackheart Transmission Crossmember, Engine Mounting Brackets, Long Tube headers, and Exhaust Systems for an Easy Trouble Free Gen III Hemi Engine Swap in the 66-70 B-Body Mopar Platform; Accommodates Popular NAG1 Transmission (Requires BHS532 Crossmember); Sets Driveline Inclination Angle to Approximately 2.0 - 2.5 Degrees with Proper U-Joint Operation Angle When Used with BHS531 Engine Mounting Brackets and V8 K-member; Uses Hooker Transmission Mount - Hooker Part # 71223029HKR or 71223030HKR (sold separately); Accommodates up to 3” Exhaust; Black Coated for Great Looks and Durability; Heavy Duty 3/16” Steel Construction; Includes Mounting Bolts to Attach to Transmission & Transmission Mount;