Hisham & other PT 42 & 43 owners. A ? about your tire size

[Eric Perplies]

We have been running Sumitomo 315 80R22.5 since 11-04. I put about
40k miles on them. There is no problem with the clearances between
tires on the drive axle. The only problem I have ever had been when I
attempted to back up a steep driveway while cutting the wheels hard to
the right. That cause a lot of weight to be transferred to the left
front tire. I thought I might have heard rubber rubbing on something.
No visible damage on anything. (Come to think about it, it might
have been the event that could have cracked my upper left shock
mount.) In any case the tires operated fine for the last four
years...until last month.

Last month my coach started pulling to the right. I took the coach
into shop specializing in motor home alignments last week. They found
the alignment is just fine. The (knowledgeable) shop owner believes I
have a shifted belt in one of my front tires that is causing the
tracking problem. In a week or so I am going to move two tires off
one side of my drive axle to he front end to test the theory.

Point is: The 315s' are fine. I use to think the Sumitomos' were
great. They rode nicely and were quiet. If the theory of shifted
belts on my front tires is right I have to give a thumbs down on a
recommendation of Sumitomos'

Eric Perplies
96' 42' WBWL
currently outside Ft. Wayne, IN