If you decide your able to tackle the restoration of the
original truck radio here are a few pictures of what's
in store for you:
http://www.pbase.com/dennygraham/986771_radio_truck&page=allFred should be able to answer your questions as they come up,
don't ask me cuz that was several years ago, a lot of water run
under the bridge and I remember very little of how I did it.
That's why I kept the pictures.
I might just add this, the very first thing that I would do
before I tried to bring the radio up on a bench check would be
to take Fred up on the schematic and then replace the vibrator
with a SS replacement. The original vibrators only had a life
span of about one year in regular use. Nine times out of ten the
tubes will still output enough to run the radio. Your gonna
need to replace all the capacitors and possibly some resistors
if you want to actually use the radio.
DG