Belzona looks great. 13000 psi compressible strength.Belzoni is a millable and drillable metal epoxy. We have used that stuff for the center pin bushings on loaders with 1yard buckets.
Remove both tracks and either flip them around if the other ends have steel all the way to the ends, or chop off the part that is missing steel, then screw them back down butting steel against each other. Add nothing. Subtract instead.