Snowman, i've resized 1000's of rods and the main reason they have to be resized when replacing the bolts(not just ARP, but any brand) is because the rods become distorted when you push the old bolts out and put the new bolts in. I've tried every trick in the book to try to find shortcuts around this when customers have had a tight budget, and it literally cannot be done without consequences. Also upgrading to an ARP requires them to torque a little more than the stock bolts which also makes the housing bores smaller and also out of round. Your on your way quickly to a 3rd rebuild and you haven't even gotten the second one done yet. My advice is stop immediately and walk away until you can do it correctly!
