I have a stock K5 with some worn out 3.08 gears. The truck has a TBI 350, TH700, and a NP208 in it. I'm thinking of going 8 lug for towing purposes. I happen to have a 4.10 14b laying in the yard, but I'm thinking it will be too high of a gear when I'm not towing, even though I have overdrive. Would you suggest 3.73? I have the parts to convert the front to 8 lug, so it's only a matter of opinion on what gear to run.