dude ive got some 8" shackles. They look home made but they are really really strong. I ran them for a while but took them off because my front driveline wasnt long enough. The whole shackle is 8 inches long, so I guess the holes are 7" from hole to hole. Ill give you a pretty good price you want them, I have ones for front or rear. too big? whaddaya think?