Hello, I am currently in the process of swapping my highway gears out for a set of 3.73 posi. I have a completely separate rear axle for it and am looking at swapping to four u-bolts instead of t-bolt/u-bolt combo. Is there anything I need to worry about? Are the u-bolts different diameters and require the holes to be larger? If you have done this and have had to do things to prep, I’d like to know! Thanks!