5th wheel Truck combo = terrible ride

rhagfo wrote:

Wood chip wrote:
It is just painfully rough going down the road. Here are my stats
2015 chevy 2500 Duramax crewcab standard bed ( weighs 8,000lbs at cat scale)
2015 Glacier Peak ( weighs in 10,800lbs at cat scale)
Pin weight 2,200lbs at cat scale 20.3%
Drive axle 5360 lbs
Steer adel 4840 lbs
Truck tires at 80 psi
Trailer tires at 80psi
Bilstein 5100's
"Stable load" spring enhancement kit
B&W Patriot hitch
Standard Lippert extended pin box

Should I try to take some weight off the pin? Should I drop tire pressure ? Not sure where to start? I feel the weight of trailer lunging and pulling the truck pretty bad.

2nd Response,
#1 as pointed out by Kaydeejay and Cunnins12V98, too much rear tire pressure! I don't know your max tire load, but I never run over 70# in my rears with about the same weight, some times 65#. My tires are rated for 3,415 ea. so max is 6,830# so I run about 78% of rear tire max, your trailer tires the same I run 70#.

CHUCKING, forward/aft tugging, has several caused an AIR PIN doesn't fix the issue it just MASKS it!! Fix the rood cause!!

I stated before does the 5er tow level, or is it nose high? If not level and nose high the rear axle on the 5er takes more effort to step over bumps, created a tug on the pin.

This is a nicer unit, but does the 5er also have shocks, shocks on the 5er smooth out it's ride by damping the ride. I can't believe the number of people that don't see a need for shocks on the 5er. I noticed a big difference once shocks were on the 5er.

Pin weight more is better, don't reduce, lighter pin will increase the issue.

Why the "Stable load" and which do you have the one for the lower over load, or the bigger pads for the uppers.
Does the truck squat too much without them? It shouldn't you should still have 600# to 700# of axle/spring capacity.