Is there any difference between the 27105-E4401 heater box that I pulled from my 07/71, and the 27105-E8801 heater box that I've seen advertised for sale?  The microfiche doesn’t even list the E4401 heater box, just the E8801 variety for all years of the 240.  I’m guessing someone else has run into this - just want to make sure there aren’t any fitment or functional differences if I replace my E4401 with an E8801.

Bump