IH Farmall 656 gas/ IH 240 Utility/ 2, Super C Farmalls/ 2, Farmall A's/ Farmall BN/McCormick-Deering OS-6/McCormick-Deering O-4/ '36 Farmall F-12/ 480 Case hoe. '65 Ford 2000 3 cyl., 4 spd. w/3 spd Aux. Trans
Too bad you don't live close, we'd have fired this bad boy up, and bent it in my handy dandy press brake in the background, to the upper left...
That looks like 3 x 1/2, 3 x 5/8 hard to tell with nothing to compare it to, either one you're going to be hard pressed to take the twist out of it cold. Straighten you could do cold with an anvil and an fbh, untwist you're either going to have to heat it and anchor one end and use a big adjustable wrench to untwis itt. Doing the untwist cold it's going to need bigger anchor and a bigger wrench....Mike
Kubota M7040, Kubota MX5100, Deere 790 TLB, Farmall Super C
Clamp in a vise, heat that puppy up and either pound straight or get a big mother pipe wrench or adjustable wrench and bend straight. No problem if you have a torch. I've bent lots of metal like that and yours looks easy.
2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010
If you don't have the tools to heat and straighten it, just use a grinder with a cutoff wheel and cut the twisted ear off, bevel the edges and weld the ear back on straight. Hammer it out after it is cut off to flatten it out any twist or kinks. Likely to take less time and energy that heat'n and a beat'n.