Ok so I have this kit on my 99 burb k1500 and I'm running the 285/75/17. I like it, not to high not to low, plus I have 4 kids 5 n under so I dnt want to constantly pick them up. I have no rubbing at all although I have no idea on the rim offset. There are two kits, spacer block or add a leaf. I did the spacer and now wish I did the leaf only because my leaves are kinda sagging now. If you haul anything I'd recommend the leaf kit, ride might be more harsh when unloaded. Also as for the shocks they were fine but I will be swapping them out sometime for the blistien 5100 which I believe are for 2-4 inch. Right now tho they dnt bug me cuz I'm used to driving pot hole dirt roads and on the pavement they're fine. If I remember right the 4 inch an higher also require the exhaust to be reconfigured
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