We leave our home base in Reno early December for Casa Grande and take I-80 over the hill to get warm and dewinterize.
We either take the 99 or I-5, which the OP will be on going thru Redding, to Bakersfield then the 58 to 395 to the I-15 thru San Bernadino then hooking up with the I-10 which will get you to Casa Grande thru Phoenix.
Since our RV Park is on the West side of CG we turn off on the 85 to the I-8 and come in that way which also bypass the Phoenix area.
In the past we've taken 395 south out of Reno and also 80 east to ALT 50 to 95 then south but we froze up in Hawthorne one year. Gets to be freezing that way including Feb/March.
We prefer the CA route.
Safe travels whichever way you go.
