Best way to repair mounting bracket on 71 grille?

Frankenduster said
I read a few years back that if you have a spare grille, you can do the following:
Take a few chunks of spare grill sections and shave slivers of them into a cup. Pour in a little Acetone and using a popsicle stick, mix together into a paste. THIS will be your "jb weld". Smear it on the cracks, let it fully dry and harden, then install.
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I have been repairing plastic grilles for quite a while and this process is a great filler but not the best to bond it together.Go to the hardware store and pick up a product called plastic welder thats made by Devcon(comes in a two part style syringe)and costs about 5 bucks.
Doug