Retro Racer

Retro,you seem to have it figured out on tire pressure! When I was hauling steel in an r model tandem tractor comeback susp. The company had me  "bobtail" a tractor 250mi from Pittsburgh pa. To buffalo ny. Knowing how rough the thing rode  "bobtail"  I dropped the drive tires to 50lbs from 90. Much better! This was 1974 and they were 1100/20 bias ply tires they have a stiffer sidewall than modern radials,so I'll bet if you are running "bias" you could run 30 psi long term. If you don't have power strg.you could. Probably drop it unit it affects your steering. The damn spell check changed camelback to comeback! Also, do you guys get "Jay Lenos Garage in Australia? I'd like to see  him drive a  road train.might have a little trouble with a two stick, but he's already driven a road ranger.