Hey ok well thanks for info there i guess i should have porvided a better description as to what i am doing, i removed floor, inner sills, because of rot but i am hoping to kep the sill in place to give me some refrence, ok it has had a nwe floor at some point and was welded over top of original one witch took time to remove and was confusing I got the 2 spacers from the buld head mounting so thats ok in process of welding it on , so that be ok and measuer form other side so that should be ok the outer sill does have to be pushed up to fit the inner sill ok it spings out , maybe tack the inner sill and a post lower in place first then know there the right distance then make floor fit? it not easy to get it all to lign up and the bulkhead if a difficult job to get looking good a lot of a blabble hope you can understand some of this i got a new bracket for the floor to outrigger too old one was reel bad nto fun fitting that