This must be the season for M27's. I am currently working on an M27C and an
M27F. Bill Darnaby mentioned in his excellent review of the M27 that the
photo to illustrate the AB mounting detail is from a PRR express car. How
would it differ on the M27?

I have plenty photos of M27's but my knowledge of trucks is lacking. What
is recommended for the late steam era?

Thanks,
Scott Seders