This frame had the usual sag at the rear engine mount location plus a 1/2" bend to the left from the rear engine mount forward. A 4 ton porta power, some tow chain, 5' of 2x4 1/4" tube, and some heat, (oh some beer was also needed) helped to put things right.
Hey, If you're gonna use the old beam and chain method to straighten frames be damn sure to use good chain! Old logging or pull chain ain't up to the job! Use atleast 3/8 or better, and hardened chain if you can get it. Never pull around a post, pulley, pipe or tree with unhardened chain unless your life insurance is payed up and ya got a death wish! Swankey Devils C.C.
Yeah maybe I should have included a few saftey tips. Allways heat the metal where you want it to bend and allow it to cool slowly, go slow and be carefull, think about what could happen if the chain should fail and stay clear of its path.