Hi Stovebolters....
Just got back from a "speed run" in the Howard Knapp truck...I think my wife said about 50 mph was about it...we were holding our own...put on my directionals on to make a left to make a u-turn and the brandey new disc brakes locked up...so we got up to about 35 mph coming home...smelled like the brandey new brake pads were screaming for mercy...felt like we were trying to push a brick wall I we hobbled home...my wife says it smelled like something was burning...I am leaving it outside just encase something wants to catch fire...don't really wanna lose my garage..
So with 235/85/16's (about 31" tall).....4.10 gears in the rear end and a 4 lane highway...50 mph is about it for Howard Knapp...
scratching my chin right now...
MikeC