I kept trying to convince myself that 1/2 ton axles will be fine because I will never want to go bigger than 35", but that all changed tonight. You may have seen my post in the garage, but I just picked up a dually D70 and matching DRW D60 (out of a '77 chevy one ton) with 4.56's for $550. So now the plans are obviously to go with a little bit bigger tire , and some H1 wheels. I see some in the future (I think, I still need to talk myself into cutting a 1st gen ) It was pretty funny pulling up to the guys house with my K5 (see spec's in sig) - he didn't think they would fit, but we showed him! The next problem will be getting them out of the K5 and figuring out where to keep them until they are ready to swap in. Anyhow, I will keep everyone posted as my K5 goes 1-ton.