I would like to know. can you get high geared rear ends for the P30 chassis? someday I would like to get a higher geared ring and pinion to get the rpms down a little. anyone ever done that?
How many miles per year are you going to travel? The cost vs. paypack on gas mileage might not be worth the change. If you have replace the tranny then maybe it might pay back. I just had the tranny rebuilt on my SUV and it was $2700 and if I was going to do that on my MH it would take a long time to payback. I would leave as is JMHO.