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Re: cross sill fabrication
Yup, I did a tread plate steel floor in my longhorn. The rear sill was a 3x3, center over the axle was a 2x1, a 2x2 for & aft at the wheel tubs, & the rest were 2x3. With a sheet of 14 guage buttoned welded to the sills, it makes a very stiff floor(the truck goes straight,while pounding gears)  crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
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