First some history. I bought my coach with Bridgestone R187 tires all the way around. The coach has always tracked straight as an arrow. Last year I replaced the front tires with R187's. This year I found out the R187's had been discontinued when I went to replace the rears. I was leaving on a trip in a week and decided to try the Les Schwab Gladiators since the sidewalls were starting to split and I couldn't get replacement R187's in time.
I couldn't have been more disappointed in the ride after the switch. The rear end of my coach wagged back and forth wildly at highway speed. It almost felt like I was driving on ice with the tail end starting to slide. I could no longer take a hand off the wheel as it required constant correction. The manager recognized me when I went to back to Les Schwab and said "let me guess - the rear end of your coach wanders", before I could even get two words out.
Les Schwab was able to locate some more R187's and have them shipped to their store. They happily took the now used Gladiators back and mounted the Bridgestones in their place, only charging me for the difference in tire prices. The coach now tracks as it did before.
In short, I was unhappy with the performance of the Gladiator tires on my coach, but very pleased with the effort Les Schwab went through to make me a happy customer.
My coach is a 1990 Pace Arrow (34 foot) on a 1989 Chevy P series chassis with 8R19.5 tires.
1990 Pace Arrow
502 GM Crate Motor
Stan's Headers, 3" mandrel bent exhaust and Magnaflows
I have a 1992 Chieftain 34 foot on a P-30. It had some "Power King" brand tires on it when I bought it. They were the 8R19.5s. I bought a set of Bridgestone 225/70 R250s. They are a little shorter and wider than the 8Rs. I have been very happy with the handling, so much better. I lost a little speed for a given RPM, but it was a good trade for me.