Rolin wrote:
Wishes: 1. wish it had a softer ride, its on a E450 chassis, 2. wish it had a higher rear end ratio, don't tow and would like the increase in gas mileage, 3. wish it had more storage space, 4. wish it had more insulation under the passengers feet area as it gets quite toasty.
If the E450's rear diffential gear ratio is too low, then it can be the equivalent of "raised" the next time you put new tires on it. Just put tires on it with a larger diameter than what was on it. This raises the overall gearing ratio of the drive train just like having a higher ratio rear end does.
You get other bonuses from using larger diameter tires, too: Slightly better ride from a bigger "air filled balloon" being between the rims and the road, slightly improved tread wear, and higher ground clearance.