Alright guys I've been considering doing a 12 bolt swap into the elco recently and want some input. My biggest question here is should I use a truck rear end? I am aware that the car rear end is considered stronger because it has a larger pinion shaft at 1.6 something inches where as the truck rear is 1.4 something. Truck rear ends are much easier to get and much cheaper, however, and all the aftermarket parts are readily available for either. So I guess the real question is, has anyone ever had a pinion shaft fail? I've heard of ring gears breaking and spiders cracking and other things but I don't think I've heard of the pinion shaft failing. I'm not looking at monster horsepower and its not a drag car so what do you guys think?