After reading JDUB's post about climbing Priests Grade in first gear, a telephone consultation with Harry and seeing Richard's elevation maps we decided not to drive the bus to Groveland. We went south to Chowchilla and parked the bus at The Lakes RV Resort and drove our Suburban into Yosemite.
The drive from Chowchilla to Yosemite is longer than the drive from Groveland to Yosemite, but is wasn't that bad. The weather was fantastic and we had a great time at Yosemite.
Next stop Monterey - we're staying at the Monterey Fair Grounds.
Many thanks again for all the help.
AJ