[Grumpy old man]

Well ... Let me tell you I have 3 perfectly straight short bed frames sitting under my build trucks right now . And a few more in the barn . So saying none of these frames are straight anymore is just horse hockey ! What happens is someone beats them into submission with a baby beater or dumps a 500 honest Hp ? Engine into a frame designed for 1/2 of that without modifications to handle the torque which results in twisted frames and destroyed suspension which you've already admitted experiencing . Assuming this is an acceptable outcome of building a classic high Hp truck is just wrong . Try again .Some of us have been doing this all our lives and it's just not done correctly if your twisting frames and suspension out from under it . I've been in this "trade" all my life and no one in my shop has ever asked if I had a "baby beater " to straighten a frame .