Seeking assistance with 2-speed rear end
Thank all of you. I have been reading for years and learned tremendous amounts. Here is the info needed in order to help me. 1973 ford, 361 gas engine, mild rv cam, 4 bbl. carb. Clark trans with 5th gear at 1:1. final drive is a single speed rockwell with ratio at 6.14:1. According to ford and rockwell this is the highest ratio available. Engine speed is 3400-3500 rpm at a true 65 mph. I have recently acquired a bus with an eaton two speed, model 19050t, final drive 6.57:1 (hi gear). My intent is to exchange the rockwell for the eaton then change the ring and pinion for a more favorable highway ratio. The available ratios for the eaton are 4.56:1, 4.88:1, 5.29:1, 5.57:1 and what I have now 6.14:1. What are your experiences and opinions regarding the best r&p in order to make a better road cruiser? I would like to get the rpm to about 2300-2500 at about 65mph. Is this doable?
Thanks to all for your help.