1987, 28 Ft. Class'A' Chevy 454 rear tire separation??

As a rule, the tire's cross section should not be any wider than 2" wider than the wheel width. If the wheel measures 6" between the beads, the cross section of the tire should not exceed 8".

wolfe10 wrote:

If based on the Toyota truck, the sticker may be on the door pillar.

Class a, Chevy 454, probably not a Toyota based RV. :)

I had a 87 p30 same as yours and yes they did indeed have 16 in wheels.
The tire spacing is 2 inches,you may have to go up one tire letter to get a taller and narrower tire than the specs say because Chevy put 2 different types of offset wheels during those years depending if the chassis was going to a RV or a light duty truck

This happened to me and that is how we remindied the problem of the tires being too close.

wolfe10 wrote:
The GVWR sticker usually near the driver's area should give OE tire size and load range. The wheels will be stamped with their size.

If based on the Toyota truck, the sticker may be on the door pillar.

If you don't have a GVWR sticker on your RV you can go to Michlin Tire website they have that info on there site.

8R19.5 was the norm for the Chev P-30 chassis.

The GVWR sticker usually near the driver's area should give OE tire size and load range. The wheels will be stamped with their size.

If based on the Toyota truck, the sticker may be on the door pillar.

BTW...It has 16 Inch rims.