Ever since the 351w swap, my car's been hell on u-joints. I keep busting the bearing caps. Stock rearend, C4, stock driveshaft, engine mounts are the same as I had on my 302. It's smooth as can be, there are no driveline vibrations... I am using 1" lowering blocks but they've been on the car for years. I don't think there's anything wrong with the pinion angle. I drive the car all the time, and yes I have a lead foot. Is this just part of the deal when you put a lot of torque to a stock driveline, or is something likely to be wrong? I'll just keep putting u-joints in every few months if I have to, but that doesn't seem right. I don't want to ignore a problem if I have one, but I also don't want to be chasing down some non-existent issue either.