Re: Uhaul donor rearend, hood and A/C
IF the F700 has the same spring setup (I recall U-Hauls have airbags) and IF it's the same width...you still probably can't use it. You have 22.5" wheels, the U-Haul trucks are lo-pros with 19.5" wheels. If you can swap the centersection, it might work...but might not be worth it if you already have a ratio close to that. Your best bet is a big-truck junkyard...look for anything with a diesel and a non-OD transmission; many will have 4.10's. Some (Freightliners, offhand) even have the axle ratio on the sunvisor tag.
You want a 4.10 or taller ratio...that's about 1900RPM at 60 with 11R22.5 tires. A 4.33 is OK...it will give you about 2100RPM, buit yopu'll probably see 2500+ on the tach with the non-lockup AT545.
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Jarlaxle
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