I'm willing too Bet that you can buy them without driveshaft loop,coming soon home page needs to be updated,has been like that for months and months.I would contact them and see if they could fill you're needs.Weld in are best,But I understand with bolt in to save an original type car.especialy on I restored car,not wanting to disassemble and destroy new paint.I had them make a set for my 68 barracuda vert.solid -original sheet metal car,with the thought that I might want too remove them some day.wrong,My little 318 street car rides so much better with them installed(bolt in)I should've had them welded in because I'm not removing them.
I would contact them and see what they have for you.Small,side bussiness for them, so I'm sure websight is not up to date.