Hey Larry,
Just had a quick question about Duratrac's. I have just finished a drawn out build on my K2500 (
http://67-72chevytrucks.com/vboard/s...d.php?t=217490) and am running 285 75 16 Duratracs on it. I imported these tyres and they are only now becoming available down here so there is no real 'local knowledge' as such. I don't know anyone running these tyres, I am wondering what sort of pressure you are running in yours? I figure Polar Bear would be a similar weight to my (empty) truck. I am currently trying 55lbs. I've only done 1500 miles so far and have gone from 50lb to 55lb. Still undecided and looking for opinions!
Loving your 8.1 swaps, I think one would be fun in my truck! Oh, and a five speed swap!