The front axle weight on our 2013 Bus is so high we need to run 120psi in the 295 fronts. When it comes time to replace them, I'm going with the 315's. We should be able to run these softer for an improved ride. These should fit on the Powerglide just fine based on clearances I see on the 295's. Tell your friend to just check clearances on the current tires. The 395's are not that much bigger.
2013 Tiffin Allegro Bus 43QGP
2011 Chevy Silverado 1500 Toad