That is the roughest stretch of road I have driven since owning an RV. Your in Lakeway, right? I live at 71 and Pedernales. I made that trip as far as I-40 on the way to a race in Wheatland, MO about 5 times over 3 years. After one trip up 35 through DFW and up 75/69, I said never ever again in an RV. We now take 281 to 380, just S of Jacksboro. 380 to Denton, I-35 to Davis, OK; 7 to Ada, OK; then 377 N to I-40. We stopped over several times at Hidden Lake RV south of Ardmore. It is a little slower but much more scenic and less stressful.
Scotty and Kristen, Airedales Dagny and Wyatt
2007 Newmar Mountain Aire 4528, 450 HP ISM, Allison 4000, 8 Trojan T-105's
2014 F150 4x4 Crew Cab Platinum 157" WB
Roadmaster Blackhawk 2, RVI2 Brake System