I have a 2020 Greyhawk 27U. We bought it brand new in Aug 2020, it also has the JRide. I tow a 2020 Ford F150 supercrew pickup. We have spent at least one night in all 48 continental states and have almost 36000 miles driven with this RV.
This is what I have done to improve drivability:
Roadmaster RSSC Reflex Steering Stabilizer For Class C Motorhomes
Properly adjust the rear Helwig Helper Spring
SumoSprings Front (Black 47)
Roadmaster beefed up front anti-sway bar
SuperSteer® SS450 Rear Trac Bar
Do not run max tire pressure, Use cat scale weights (or other) of vehicle loaded for travel and the tire pressure chart for the installed tires. I end up running between 70 -75 psi, which is a tad more pressure than my tire chart shows.
Great thread on this topic: https://www.jaycoowners.com/forums/f...way-86986.html
These changes took me from a white knuckle 300 mile/ day driving experience at no more than 65 mph, to an easy 500 mile day at 70 – 75 mph. Although, I still do a lot of 65 mph driving to conserve fuel. Trucks passing or being passed is no longer a thought while driving. Wind at or above 25 mph or gusting greater than that causes me to slowdown quite a bit, just feels safer.