Anyone got a good source and size for u bolts?

Going into a 98 2500, dana 80 rear. It has everything from the towing package other than the 4.10 gears. Looks like the bolts are 16" long, and maybe 3" ID, does that sound right?

 

I went to a bigger 5/8in U bolt on my truck, it has the overload springs and I believe the dimensions I used were 16in. long and 3 1/8in ID

 

I just typed in u bolts in Ohio an I think I ordered them from Columbus. Good Luck

 

Might want to check for a local spring/axle shop, I found one near me that made them right in front of me for something like $15 each with all hardware. Plus you know they are the right size that way.