Time for an update! Or... "how to build frame rails in an afternoon!"
I got off early today & decided to take the 2 pieces of 2 x 3 x .120 wall rectangular tubing and build some frame rails. I have had the tubing sitting in the garage for a couple months now while I was thinking about the best way to build the frame. I've never build a frame from the ground, up so this was something new to me. So far it's been a great learning experience.
I decided to "Z" both the front & rear, which will hopefully make the suspension sit higher & allow the body to sit very low. I took the 2 pieces of channel, which are 14' long, and laid them side by side. Once both pieces were level I clamped them together and tack welded each section that was going to be cut out, top & bottom.
The center of the frame, where the body will sit, was measured out at 48" on the top. From there I made 4 cuts on the chop saw, each at a 75* angle. On the front I cut 10" out of the frame. The back had 18" cut out of it.
After getting the tubing cut into 5 pieces, I had to mock it up to see if I liked the layout. Here's how it looked.
Looks great!! I was getting excited at this point! Next up was welding the pieces together. I wanted to make sure the frame was as level as it could be, but I don't have a fancy frame jig or a welding table. I did have a piece of metal I bought years ago for a project that is long gone & haven't been able to part with it. I thought it would come in handy, and did it! It's some 3" x 3" square, 1/4" thick tube. I decided to tack my center frame piece onto the 3x3 and add the kickups from there out, measuring as I went. From the kickups, I worked my way to the front, then the rear. Once it was all tacked into place, I checked the heights again, then started welding the joints together.
The cuts allow for 6" from the bottom of the frame to the ground on the front Z and 13.5" from the bottom of the frame to the ground on the rear Z.
After I had welded up the visiable joints, I got out the grinder & cut the tack welds that were holding the rails to the 3x3 as well as holding the rails together. I seperated them and set 'em up to see what they looked like.