Okay guys, I have a P5249499 380/360 magnum crate engine assembly. I installed it with the automatic t/conv weight package specified with the p5249843 magnum weight package correctly on the converter. However, the car has a drivetrain vibration. After careful inspection, I have found the engine has the LA style balancer with the groove in it. It came out of the crate with this. The magnum balancer is distinguished from a large notch cut out of it. My question is, does any of you guys have this motor, which balancer is on it? I am hoping for just a balancer change to correct the problem. Mopar is NO HELP AT ALL. No one seems to be sure how they are balanced, or if some are LA balanced, some magnum balanced????
