My Barracuda was originally a slant six. I replaced the engine (360), 727 trans, new driveshaft, 8 3/4 rear end and heavy duty leaf springs. I have a vibration above 55 mph. I was wondering if my pinion angle is off. Where is the best place to measure the pinion angle? I watched a number of YouTube videos and they all seem to measure them differently. The vibration seems to be coming from the driveshaft or rear end. Thanks
