Are the F2A and F7A shells interchangeable?
As they have, or should have, different underbody details, I expect not.
Cheers.
Went to a train show over the weekend and was able to compare the Bachmann F2A with the F7A, and they are almost the exact length and width, but the shells did not look enough alike, mostly in the fuel tank areas, to chance them being interchangeable. I found someone selling a brand new Bachmann F7A with sound for $95.00, so I bought it and ordered the Barnum & Bailey F7A. When it comes, I will swap shells so I have a sound powered Barnum & Bailey and then sell the Norfolk & Southern F7A as a DCC ready unit.
No they are not interchangeable . The wheel base is different. The FA2 is a Alco and the F7 is a EMD.
Adam
Looking at the parts diagram, provided free on this website, they won't work the frames are completely different.