Class C Tire Replacement

We bought a used 2000 Georgieboy Class C a year ago.
The previous owner (or factory) had changed the "D" rated tires to "E"
Depending on which literature for my MH; from the factory,
you see either D or upgraded later to E rated tires.

Mine are BFG.
So I e-mailed BFG about tire pressures.
They said without a 4 corner weight they would only recommend
that I run the max stated 80 psi. With a 4 corner weight they
would give specific recommendations.

The truck center that did a brake job set the rears at 77psi
and front at 72. Mine is a short 24ft and no I do not believe
anywhere near max weight. We load light. I still have to weigh it.

Several tire web sites have tire psi for weight listed.
Michelin is one that has it on their web site.

Hi,

I used Toyo. I also replaced the wheels so I could use 235/85R16.

If your original tires were Load Range D, then you should not run more than 65PSI in your current Load Range E tires. So many inflate to the sidewall max, or 80PSI in Load Range E.
Just weigh your coach and inflate to the pressure indicated in the Load/Pressure charts available on the web. Doesn't have to be for your BRAND, just for a TIRE with the same specs as yours.
It's VERY common to replace "D" tires with "E" as they are much more common. I doubt the load range is the source of your rough ride. I believe it's
1. the fact it's a Class C "Cube Van" RV
2. more air pressure than your axle weights call for

Most rv tire failures arecaused from under inflation. You should always check pressures and keep them within 80% of recommended pressure

I installed Firestone.

I put Cooper's on my rear this last spring and they ran good for the 5700+ mile trip this last summer. Also make sure that whatever tire you run you have them inflated properly. Most RV's run with too much air. I'm one to not spend an extra $200 per tire for the top brand, but that's just me. I usually travel less then 2000 miles a year.