Metallurgy - Best way to straighten this grapple?

dimanche 23 avril 2017

I picked up this John Deere WorkSite Pro GT72 grapple at an auction Friday. A buddy has been wanting one. I'd like to straighten some of the teeth that are really out of place, then weld pipe spacers between them 6 inches in from the ends for support. How would you go about bringing these teeth back into proper position? Not sure how I can do it without lots of heat, but not sure if the heat would be a good thing in the long haul.