04-07-2013, 12:29 AM | #11 |
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Join Date: Jul 2012
Location: Ladysmith, WI
Posts: 641
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Re: 72 C20 "Old Mustard"
...but we weren't quite done cutting rust out of the frame. The rearmost cross member had the same issue with the rust jacking the connection to the frame apart and rotting everything. The first bed to frame mount location behind the rear axle was bad on both sides, too, so those got replaced. The little 120V welder is getting a workout with this frame work. I've been beveling the joints pretty well to help with the welds and running the mig nozzle in a series of back and forth strokes across the joint rather than just one straight pass. I've only been running about 2-3 inches of weld at a time to take it a bit easier on the welder. Not sure that is necessary, but I think it's only rated for about 20-30% duty cycle at full load.
I'm going to box the rear section of frame just in the cross member area (which also is by the rear leaf spring mount) and shorten the original cross member and weld it in between the boxed sections, I think. I'll also box the top of the rear axle hump in order to install a gooseneck hitch in that area. I'll probably be copying or at least referencing some off the other gooseneck intalls I've seen on this site. Did I mention I think this site is awesome?
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Nick Old Mustard, 1972 Chevy C20, 350, TH350, 4.10 Dana 60 rear, owned since I was 16 in 1986 http://67-72chevytrucks.com/vboard/s...d.php?t=545356 Blue Bell, 1987 K20, 6.2L Diesel, TH400/NP208, 4.10 gears Ustahav 1976 K10, 350/350/203, Gov Loc, Yooper beater trail truck. |
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