Tim according to the ’54 Truck Data book the only mirrors that were an option for the 3104 were R.P.O. 210H the L.H. long bracket, R.P.O.210J the R.H. long bracket and R.P.O. 210G the R.H. short fixed bracket. For the interior the parts book only lists The Glare-Proof Rearview Mirror accessory for ’54, gp.16.068 pn.986948.
If you have any more info I would like to see it also.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL