So having begun with grandiose plans about swapping out for some sortive overdrive drive-train another thought has popped up (rare event..thoughts). At 2600rpm sounds/feels noisy, but the rig is still essentially a tin can. .. I have a couple oem 4-speeds and one extra transfer case... 1)rebuild this transfer case or replace outright with Orion. 2) rebuild (if needed) 4-speed. Spend the rest of effort & $$ on creature comfort type stuff? 1) Re-do exhaust system geared more toward silencing than noise? 2) dampening/insulating material on interior of body to include some sort've headliner for hard top? I only really need to drive 65mph about 6 miles one- way on my route to work> conjurings, bsings, ideas welcomed.