Wheel Clearance on a 5er / Noob 5er help on suspension...
I've got a "new" Keystone trailer - toy hauler that's about 36'. Empty weight is 12410. GVWR is 16500. Dual axles are 7000 lb lippert with a "correct track" alignment system.
I'm towing it with a DRW (Dually) Ram 3500 that uses an auto-slider 5th wheel hitch.
This is my first 5th wheel.
I replaced the factory "Trailer King" tires that were pretty maxed out at GVWR with Sailun ST235/85R16 (factory size). Appropriate valve stems and wheels. These tires weighed about twice as much and although they were the same size, they were slightly taller - mostly tread depth.
First big trip this week. Hauling a 4-wheeler, slightly off center, but nothing else particularly large in the cargo area. I had it weighted on a CAT scale, and the weight on the trailer axles was approximately 11k lbs. Well within spec for 7k axles.
The issue is that I've got about 2.5" of clearance between the top of the left rear tire and trailer "deck". No indication of touching in 1200 miles of towing, but I'm clearly not loaded to anywhere near gross.
Contributing factors are:
1) Slightly left of center load (400 lb 4-wheeler)
2) 30 gallons of fuel (<200 lb) that's also left rear
3) The Ram 3500 DRW appears to provide a "nose up" attitude for the trailer. IE - I bet I've got more weight on the rear axles.
I haven't asked Lippert if 2.5" of clearance is in spec, but I'd like some advice. As it's a toy hauler, I believe the axles are already flipped.... How much effort should be put into leveling the trailer to the truck to balance those axles? Should I be concerned with 2.5" of clearance...