Bostonian 71 demon

MOPARMAGA said

Are you going to make a cross member to tie your frame rails into ?
This will be interesting to see how you do this, if you plan on leaving the rest of the sheet metal alone.
I sectioned my entire pan after removing the spare tire well & the cut the ends of the rails away from the body, slid it together, rewelded the pan and then welded it back into a cross member I built with a drive line safety loop I added afterwards.View attachment 1716346970View attachment 1716346975

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Since I already have the ladder bar mount in place at the front, I decided against relocating the rails. Instead, I’ll narrow the rails to 1" wide at the wheel wells and move the spring box flush with the rails, bringing the sliders inboard. For the fuel system, I plan to section a 64-66 Mustang gas tank, removing 4 inches from the middle lengthwise, and install it in the location of the spare tire well.

Additionally, I’ll install two 1 5/8" chromoly tubes. One will run across the rear, allowing me to cut out the valance area between the rails. This tube will double as a mount for the vertical wheelie bars and tie into the slider mounts. The second tube will be positioned near where the rear shock mounts were, as I plan to remove that panel to create space. The shock mounts will be tied to the rear down bars, with holes cut in the floor for them to pass through and tie in securely.

Off the down bars, there will be two supports tied to plates positioned directly above the highest point of the rear frame rails, finalizing at the down bar plates above the leaf spring slider mounts. The down bars will also feature a crossbar for mounting ballast, which will be positioned directly over the gas tank. Lastly, I plan to install X-braces in the location of the original rear down bars to further reinforce the setup.