Don't leave out the part about ATI having several BB Mopar units--duh..which one? Different hub lengths --some will clear timing cover, some won't clear certain ones etc big PIA and the big deal with ATI is that they send them out from the factory too small on the ID--with all the different brands of cranks and the small side on the ID you usually have to have a shop HONE the indside for decent fit--yea they need to be tight but not THAT tight--measure before you go to install--if someone says they fit easy they had a China crank with the snout on the small side of spec..also ATI's run with no pulleys NEED BOLTS in the pulley holes per ATI instructions or they can come apart---READ the instructions and CALL them as they have enough choices to get you in the weeds with a quickie order.