I've heard you do not want to crank the tortion bars to much, and if you go more than and inch or so (figure they've settled about that much over the years) you will want to have an alignment done.

I've heard we can fit 32 x 11.5's on stock rims (I know SR rolling stock is 1" wider than LS), but you indicate you have 15 x 8's, so maybe, if you have a wider offset, you can fit 32 x 12.5's or maybe 33's, but then you may run into clearance issues.

There's a guy on here with a dedicated web site on all the mods he's done to his Gen II, including the correct way to crank tortion bars. Get on there and check it out.

Maybe its the lawyer in me talking, but you never want to "max" out anything that has the word "tortion" in it, especially if you're like me and don't quite understand how tortion bars work.

Surf around the site and enjoy. I waste plety of billable hours dreaming of how I can spend my hard earned money to improve my dream truck. Have fun and be safe, they're incredible trucks, but they have limits.