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gumby79 · 06-29-2016, 06:04 PM

I used 1/2" ×1/8" flat strap@1/3 interval on edge (frontal area of 1/8"×2"=.25 sqin per support ×4 , ~8" solid weld front and rear in the center and .095 1"×3" rectangular steel for the uprights

06-29-2016, 06:04 PM	#67 (permalink)
gumby79 Master EcoModder Join Date: Dec 2014 Location: Butte, Montana Posts: 726 little jona - '91 Dodge D 250 first gen cummins LE Team Streamliner 90 day: 23.4 mpg (US) Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 2×4 AUTO Pickups Team Cummins 90 day: 18.5 mpg (US) The Salted Hound Jenny. - '87 Dodge Ram 50/D-50 5sp 4X4 90 day: 20.24 mpg (US) Jona Allison aero - '91 Dodge Ram D-250 Le 90 day: 20.76 mpg (US) Thanks: 208 Thanked 428 Times in 279 Posts	I used 1/2" ×1/8" flat strap@1/3 interval on edge (frontal area of 1/8"×2"=.25 sqin per support ×4 , ~8" solid weld front and rear in the center and .095 1"×3" rectangular steel for the uprights