[red65mustang]

thanks for the hearty chuckle Kultulz!!!!

with no torque boxes,,,just the stock 289 did cause windshield leaks!!!!
asking just the flat sheet metal floor to handle the TQ was a engineering "whoops" till 67' when they got one torque box?

ps: I edited/added to that last post (as usual,,CRS!)

[jgstang]

[timothale]

K engine mustangs used the thicker gage rocker panels originally designed for convertibles and the convertibles had a flat plate rocker reinforcement between the inner and outer rocker panels. also the convertibles have a 1/4 inch plate bolted to the convertible only bottom seat riser reinforcement. Lincoln versaille used the same floor pan chassis design and had bolt on frame rail channel reiforcements. I added 1 X 1 1/2 rect tubing to the rocker bottom flange, cut tubing with a hole saw to get bird mouth fit to an after-market round tube sub frame kit to fab up a ladder type reinforcement for each side. I located the cross pieces to support the seats and for the roll bar mount. One of the Factory test mules ended up with kinks in the upper portion of the radiator support when cornered hard with fat front tires. I added 1 X 1 tubing across the top of the radiator support and back to the spring towers. Shelby mustangs had the upper control arm holes drilled 1 inch lower for better front end geometry. Also they had more welds in the front structure assembly. It is important to check the Cowl structure bottom panel. leaves and dirt can collect inside and cause rust thru or weaking. The cowl panel is part of the load path in the design.