70 dartheater/ radio bezel issue

I purchased a radio/heater bezel for my 1970 dodge dart fof ebay. Chrysler part #3501602

my radio fits, and it lines up with the gauge cluster and glovebox like its supposed too, but it will not fit in to the slot for the heater controls, its about 3/16" too wide on each side...im stumped here...my dash is out of a 1972 dart swinger, and everything online says 70-76 are identical but thats clearly not the case...Can someone help me find the proper part # i need?

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