I know I read on here before the format change about how you can roughly adjust your alignment by measuring the distance between the front of your tires and then the rear, with a certain amount of difference....is this correct? Is there more to be done? Or, better yet, can someone give me a good idea of where to read? I did some searching but couldnt come up with anything.
Thanks,
Jason

1/32 of toe in (tires pointed in at the front) would work fine, getting the steering wheel straight would be trial and error.

I made a tool to do it. It is a piece of 1/2" square tubing that has a 1' piece welded on one end at a 90° angle with a pointer on the end. The other end has a piece of 3/4" square tubing that slides over the 1/2", and it has a 1' piece welded to it at a 90° angle. The end of it has a flat piece with marks every 16th". The sliding part has a bolt that you tighten to lock it. Jack the wheels up and spin them while holding a pencil or some marking tool against the center of the tread. Let them back down and bounce the front. As said above, it should be 1/32" closer on the front. If you get the toe right but the steering wheel is crooked going down the road, adjust both tie rods the same amount to center the wheel so you don't mess up the toe. The most accurate way to do the above is to have two steel plates with grease between them under each wheel. That way, when you set it down, the suspension isn't under load from geometry change.

Max you can do the job with two straight pins, I tape measure and a helper. Push a pin in the the center of the tread on the forward part of the tires. If you are kneeling to the side of the driver's side tire the pin would go in the 9 o'clock position. Three on the other side of the truck. Take a measurement across the pins close to the tread so not to bend the pins. Roll the truck/tire back 180 degrees. Take a measurement at this position. It should be the same or slightly bigger than the front if you are toed in. If your measurement is close you won't have to worry about the steering wheel center. If not there is a technique to determine which wheel needs adjusting. I couldn't get anything bigger than a one ton on my machine so I had to do the bigger trucks out on the shop floor. (toe in/out only) Later! Frank