watahyahknow
+1y
i'm having the same problem with mine , the problem is that its multiple layers of steel with rust in between .
i have a second cab wish is allso rusted but has better jambs and i'm going to try to cut those out and craft them into the parts that are rusted in the better cab .
it will be hard to fabricate those pieces out of flat steel .
if its not too bad piece you can brush the rust out and weld the holes up with copper/brass and a torch , that way it whont rust further