need 12bolt 3.73's
 

I need to change my rear gears. 3.07's and .67 overdrive don't work well together. On a run to las vegas at 80mph [2000rpm] I only get about 15mpg, and the engine lugs real hard going up hills. Going up to a 2400rpm cruise will help greatly. Anyone have a set for sale? Or a complete 3.73 rear axle in phoenix [dont need the whole axle but...] Thanks.