I have a friend that has a 83 CJ7 and needs to put a new heater blower motor in it. He said the ones he has purchased are larger then the original and don't fit the hole in the firewall. Does anyone know where he can get one to fit. I have looked online and the ones I found say the same thing. I'm assuming that over the years the hole had to be enlarged due to spec changes from the OEMs. Any feedback is greatly appreciated.

Thanks,

Dave