Not sure I've travelled roads with that description. While a road may or may not have a shoulder, the height should be near the same from the main roadway to the shoulder. Slowing down should ease any concern when you switch from one road surface to another if you must travel that direction.
Are roads in your locale built with this height difference for a purpose? I've always viewed shoulders as being built for temporary stopping not an extra lane for travel.
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2019 F250, gas, 4.30
2017 29RKS
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