I recently purchased a "Family" style roll cage from Extreme Custom: CJ Family Roll Cage I had them make the cage out of 1.75x.120 tube instead of 2" and added a few extra tubes for strength. I am also going to tie the seats into the roll cage and plan on tying the cage into the frame as well. So far, I have spent a lot of time measuring, double checking my measurements, and practicing welding the tube. I am hoping to get a little insight from those with experience fabricating and welding on a few things. My current seat belt setup is like this: This has the seat belt almost inline with the seat back. With the new cage, the B Pillar tube is moving back ~3". I am curious if that will work ok with the seatbelt that far behind the seat. My guess is it will be fine as cars have more than 3" of adjustment and the seatbelt is always fixed. My second question related to this is I had bolted that seat belt unit through the OEM roll bar. Like this: Will this be ok or should I figure something else out to avoid drilling through the tubing? Any help would be greatly appreciated. Thanks!