Tire pressure for new class C
First timer with new class C. Leprechaun 260 dsf. Ford E450. GVWR 14500 Rear 9600 Front. 5000 Door pillar recommends front 75....rear80psi Checking when I got home all tires were at 6...
Forum Discussion
Jack Spratt wrote:
Thanks for the help
I will air them up tomorrow
Beware....you may end up with too little effective runtime +caster.
Ford ships these E350/E450 Cutaways off the assembly line
with +3 to +4 degrees of Caster. Those settings are
OK for city driving BUT you want to have +5 to +6 degrees
of Caster for highway driving, OTHERWISE:
POPULAR MECHANICS MAY 1973:
START QUOTE:
If too little caster exists, the car will wander and weave,
thus necessitating constant corrections in steering.
END QUOTE:
There are at least two ways to increase the effective
runtime caster (see Self Aligning Torque):
1. Decrease the tire inflation pressure to the required
minimum for load (to increase Pneumatic Trail), and or
2. Increase the caster angle during an alignment
(to increase caster trail).
If you find an improvement in reducing the tire pressure
you will be amazed what it is to add +2 degrees of caster. IMO.
