yeah, the guys at advance adapters said i would have to grind a notch in the tail housing, but didn't say anything about cracking the tranny(witch wouldn't hurt to be rebuilt also) that"s good info. thanks shaun. anyways, the next question was going to be twin stick or not? i see there's a couple different styles, the stainless, which would be great for an older model, or the cable type twin stick conversion. im not personally sure but it looks like it could be used without having to grind a notch in the case. i have also failed to mention that i have 3/4 ton 44/60 axles i am wanting to swap in. i also have most parts from a donor truck that i could use. im sure there is going to have to be some fabrication work and trial and error also. hell, maybe i should just stick with the classic fords