Having camped there a lot, and going again next week. I have seen large Motor homes there, the largest being about 35 ft and towing a toad.
I know that it says 31 ft so I measured a few sites from the entrance near site 47, the host spot, to site #1 they average about 41 ft. That leaves no room for your tow vehicle,there is no room to park beside it because the road is narrow.
In the spots 48 thru 65 the roadway is wider and I have seen large RVs there with their tow vehicles or Toads parked beside them.
It may be hard sometimes to get 2 sites together because reservations are not site specific they are assigned at the gate, but you can try.
The weekends it is full but during the week it is usually very open.
This website will give you a view of all the sites.
As you can see from site# 48 on they are wider but not any longer.
Campsite Photos Good luck,it is a nice place.
2006 TIOGA 26Q CHEVY 6.0 WORKHORSE VORTECFormer El Monte RV RentalRetired Teamster Local 692Buying A Rental Class C