I have a BJ73 with 3b NA diesel. It currently sits on stock size tires (29?) . It runs fine for me on the highway up to 120K or so. I am going to put lunchbox type lockers front and rear and larger tires. I'm thinking 33's. Currently my rear pinion bearing is worn out and needs replacing. I'm thinking about doing lower gears at the same time as the lockers in order to work well with the larger tires. Can the 3B push the 73 down the road at 100K without a turbo on 33's if geared down a bit? Any suggestion on Gears? I think stock is 4.10 but not sure here.