Well I just received my Metco forward drive shaft loop to fit the 4" d/s. Its a bolt in using existing holes. No drilling, just bolt it in. I'll try and get it in this weekend and some pic if I'm feeling better. I think I'll have to remove the front of the d/s to get the loop in place. I'll post some info when I do. It's made of 1/4" steel and very nicely made. More to follow.