Do I have the wrong Size U bolts for 1983 CJ7?

Hi guys Im in the middle of a suspension lift nightmare, and could really use your help. Everything was going smoothly until I got to the U-Bolts. I have the stock dana 30 front and amc 20 rear, The kit came with (7) 2.75" U-bolts and (1) 3.25" U-Bolt. The 2.75" U- Bolt fits into the holes with a little force, but there seems to be a bit of a gap on the side of the tubes, maybe less than an 1/8th inch on each side of the tube. Is this something I should worry about? will some of the gap tighten up when I start to wrench on it?
Thanks guys, cant wait to get my jeep on the road:D

Do I have the wrong Size U bolts for 1983 CJ7?