We also are in CA and tow an 8000lb trailer around all the hills you mentioned. Our truck is a 2022 F350, 7.3l, 10spd, with a 4:30 differential. It is really a lot better than the 6.2l in our previous truck. In fact, we have no problem accelerating...
The I5 to Hwy 20 route is an ideal way to go. Hwy 20 intersects Hwy 101 near Ukiah and then you can travel up 101 and experience the varying terrain up to Klamath. Hwy 36 from Red Bluff over is not suited for RVs and in fact has been closed or restr...
Your idea of driving to a safe location is really the only safe option. I spent 32 years with the CA Highway Patrol and can vividly remember the cases where somebody did not want to ruin a wheel or something else and the result was injuries and/or f...