My ol' 51 Ford 1-1/2 ton used to bump-steer pretty bad. I got used to it and compensated for it when there was room. I used to have to cross the tracks in town,and every time I did,the truck would jump about 2/3 of a lane to the left. It used to scare the bejeezus out of my friends when,as I approached the tracks,I'd jerk the steering to the right and whip the truck over against the curb,hit the crossing and land in the center of my lane. It was either that or let it jump into the oncoming traffic lane THEN yank it back in place,and I preferred a vacant curb to an occupied head-on lane. I could usually split the difference and move a little to the right,it'd jump a little to the left and there was usually enough room to get by even if I didn't gather it up in time. (Made the oncoming drivers nervous though.) The point is,as I was told by an old Ford mechanic,they even did that NEW,it was one of those things you got used to because it was nearly impossible to eliminate in those days. Now days it's only expensive to fix.
BTW-My '45 Mack truck had 4 inch lift blocks on the front end from the Factory. Just use iron or solid (NOT hollow) steel blocks and GOOD U-bolts the right length for safety and get the alignment checked/adjusted by a shop that does big trucks. They'll likely have to at least angle shim the axle a little to maintain the correct kingpin rake.
Speed
Last edited by speed 6351; 04/16/2018 10:06 AM.
