I am currently running 33s on my 89 k5. It has the stock 10 bolt front and rear with 3:42s. I want to run 35s and am looking for a good set of gears to fit into the 10 bolts. My question is what gear ratio would complinent 35 inch tires? Any help is greatly appreciated. I have heard 3:73s, 4:10s and 4:56s. I am in the military and a tight budget.