I made the upgrade last year on our 3791RD and in my opinion it made a significant difference. The IS suspension is the ultimate upgrade but since we put limited miles a year on our unit I couldn't justify the cost. I did the upgrade myself but it's really a two person job. Used the Lippert levelers to raise the unit and then supported with jack-stands. Estimated start to finish was approx. 6-8 hours. Good luck and be safe!
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Wayne & Karen
2017 3791RD, MORryde SRE4000 w/ X Factor
2017 Ford F350 Lariat, CC, LB, PSD, DRW, 4WD, Curt Q24
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