Tire Search for 5th Wheel
After selling our home in FL, We purchased a 2010 Alpine 3450RL by Keystone last Oct. 2013 in IN where we had been workamping, drove it out to TX then back and around panhandle of FL down to Vero Beac...
Forum Discussion
JIMNLIN wrote:
Your '10 3450 RL Alpine shows to have a 15500 GVWR and probably 7k axles.
Many folks use the Goodyear G614 LT235/85-16 G load range at 3750 lb capacity.
Another good tire for 7k axles is the commercial grade Sailun S637 which is a all steel ply carcass LT235/85-16 G load range at 3750 lb capacity. This tire is recommended for trucks and trailers.
And as donn says the 17.5" trailer wheels and commercial grade LT tires is another upgrade option.
You'll have to do your measuring home work for proper clearance between the tires and wheel well. Use 1" minimum between the tires and 2 3/4" at the top for std leaf spring suspensions.
I would say that this is the correct advice. 17.5 inch H rated tires are probably overkill for your application. I have a unit rated in the same gvw area and switched to Goodyear G614. You need to check your wheels to see if the are rated for 110 psi in addition to checking diameter of tires for fit. I think the issue at play here is weight transfer during towing. RV manufacturers use static weight ratings and size tires as close and cheaply as they can, not allowing for weight transfers and road forces. Also, Towmaster is a real dog of a tire.:)
