I’m getting ready to put my banjo rear back together and figure now will be the easiest time to fix the minor pitting in the axle tubes and paint them. I just got them back from sandblasting and they have some minor pits. Nothing too bad at all but enough to need some treatment I think. I was going to use Bondo but was worried about the heat. I’m not really sure how hot the axle tubes get under normal conditions. What would you all recommend?