The Rancho brochure says: F/ROriginally Posted by Breezy
Highway: 6/3
Sport: 8/6
Work/Tow/Haul: 6/8
Off-Road: 4/4
I have a major stretch of washboard on my dirt road that's really severe this year.
I had been running mine at 4/4 for a while, but going about 23-35 mph over that washboard...it jiggled and vibrated the truck so bad my compass on the dash would move up and down on it's hinge and my steering wheel would shake and move too....
Otherwise, the front was a little too floaty/bouncy on dirt/gravel roads. Just changed it to 6/3 last week and it's much MUCH better. It handles the washboard better, not quite as bone jarring vibration and the compass stays still.
Our dirt road is private, no city maintenance, so various residents hop on their tractors after a good rain and grade the road by dragging a blade behind the tractor....but it's been so hot and dry, nobody's been able to do that for the past 6-8 weeks, so the washboard that's developed is just fierce.
Also lowered the air pressure yesterday from 40-41 down to 35, and logically, that made the washboard a bit mellower as well.
I like this combo, think I'll keep running them at 6/3, and may air up a little if the road gets scraped.
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