[dsraven]

in order to get the right look you really need to know the tire outside diameter that you intend to run when the truck is completed and also the amount of drop you will run-your ride height. if you use a stock axle center line and run really small diameter tires it wouldn't look as noticeable as if you did the same drop and axle center line location with larger diameter tires. sorry man, you gotta mock it up. if using a bolt in member you could tack it in place, assemble it and place the front clip on, over the tires, to see how you like it. then drill the holes and bolt it up when you find your sweet spot. maybe have to grind off the tacks and shuffle the member ahead a little as your mind's eye sees fit. it is a great idea to get the frame up on some sturdy stands where the stands are not gonna interfere with the removal and install of any parts. set the frame at the rake angle you want. get out a plumb bob and mark the floor under the old axle center line on each side. with a long straight edge or a laser connect those dots and extend the lines waaay out past the work area and make some new marks with tape on the floor so you can work and not worry about rubbbing off the marks off the floor. this way the axle old center line can be brought back to life again for reference. most of the cross member guys reference the original front spring mounts as a point to measure back from to get the new cross member center line so leaving those spring mounts in place on the frame, or center punching the frame at their center line, will help you. it's always good to read through the new member instructions too, so you are clear on how it goes together. also, some research on how IFS works would help just so you know if something is not right before you drill any holes.