I can't thank you all enough. I dug into it last night. Pulled a caster shim out and it is the factory required angle. I pulled a wheel off and measured it to be 16x6 with a 1/2" positive offset. I had put in 1/4" wheel spacers to give me more breathing room between the tie rod end and the rim but I removed them and I still have a solid 1/4" clearance from tie rod end to the rim. Now for the grand finale.......and probably the main culprit. I had 1/4" of toe out! I dialed her in to 1/16" toe in. It drives like a entirely different truck now. Steering is lighter and more relaxed and it doesn't dart like a jack rabbit over every bump and dip in the road. Before I had to two hand drive the thing and prepare for it veering every time I hit bumps or a roll in the road. Last night I drove it relaxed with one hand on some smooth and bumpy roads. Across railroad tracks. She tracked straight and clean through it all and never darted. Thanks!!!!


1949 Chevy 3600
1975 W-25 Hurst Olds
1970 GMC 1/2 ton Fleetside
2010 Chevy Silverado