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YET ANOTHER 99 RCSB F250 BUILD
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[QUOTE="DEECEE, post: 749956, member: 10385"] Well, yet again my project was put on hold when my buddy went out of town on the pipeline again. :( I decided I'm just going to do it myself, I can weld well enough to handle this project. I have read a few engineers opinions on cutting and welding truck frames, I'm so mixed up due to all of these conflicting opinions. I dropped my fuel tank and drive shaft yesterday and I am ready to cut. I made a template to do the cuts at about a 40 degree angle on the top side and bottom, the cuts will start from one direction on top in a sharp angle then zig back down the side and back again on the bottom, the thing I am worried about is the sharp point on the bottom portion where the z would come to an angle on the bottom. The way I understand it the bottom of the frame takes the abuse and I am concerned a sharp angle would create a weak spot. I read on the miller welding site and also in another place that you shouldn't create any vertical seams (90 degree angles with the frame) and you should aim for as close to 30 degrees as you can. The best I could manage with my template was 40 degrees, with this frame it would be hard without taking out the crossmember on the front leaf spring mount temporarily. I am cutting it in the morning, and will probably weld it this weekend. I am going to do a root pass on the inside of the frame with 6011 rods with an AC arc welder, back gouge the outside put down a bead on the outside with 6011 and then swap over to a 7018 to do my buildup, grind down my weld flat and fish plate the inside of the frame with an angled piece of 3/8 beam I picked up at a scrap yard. [/QUOTE]
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