I don't know of anyone who sells just the top portion of the bedsides. Your best bet may be to find a bed that's rotted away at the bottom (pretty common) and salvage the hopefully good top portions to splice on to yours. I think you might even be able to adapt a pair of 47-55/1st bedside top sections, as they're basically the same except for being angled instead of flat. It might be worth a call to Mar-K (Toll Free (844) MAR-K844) to see if they could help you out. There was a member who fabbed new complete bedsides by welding flat metal to exhaust tubing of the correct size for the rolled portion.

I don't know of fender patch panels for 55-59 stepside fenders, although there are front patch panels for 47-55/1st rear fenders available.

You might try posting a want ad here in the swap meet forums.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.