Because its the most complicated part of the chassis. Designing chassis is fun and challenging, but it doesn't led itself well to acutally completing a project. People who swap chassis (or front clips) aren't unintelligent or lazy, but they are more successful at completing a finished project than people who build stuff from scratch. The people who sell abortions on ebay don't count. I'm talking safe, functional, good looking vehicles. If you're dead set on building a chassis, I'd suggest buying lots of books and reading up on chassis design. If you want to tinker, then design and build away, but if you want to ever drive your truck. . .
RacerJ - thank you for your concern... and i am not being sarcastic! the thing is, is that this project is not on a deadline, and as much as i want it done yesterday, i neither have the time nor the money right now, so about the only thing i can afford, is research and planning.
as for dimensions, i should be set for the most part, i was able to get some info from the HAMB and a couple more websites that i ended up finding. so no one has to climb into the attic or anything to find an old book!
right now, my first concern is getting a title and getting the truck registered/ insured. this is covered, skip @ french lake has one for me, just gotta go get it.
right now i am continuing planning, weighing out all of my options, figuring out how much shit is gonna cost any way i do it, and figure out whats going to be the best. i have been stuck on going straight axle for quite a while, but might just get me an s10 clip afterall, it is still not out of the picture, but right now its the bottom of my list, but in a month it might be at the top, who knows!
i appreciate all of your input, thats why i even brought this up on here in the first place, so if anyone else has any ideas, please share, and i hope to get rolling on this soon... and once i get a little progress i will definitely share!
sorry this is long :? oh well.