if you search Barthmobile somewhere there is a pdf link to alighnment,springs,handling ect for the p30 MH chassie. I printed this off a while back and is now in my Barth manual. Very well written. Doorman
1986 31' Regal -1976 Class C 454/T400 P30 -350/T400 G30 twin cntr beds - 21' rear bath