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Cooperchino70's avatar
Cooperchino70
Explorer
Aug 17, 2016

Upgraded to sailun s637 Tires, huge difference from towmaxes

I just wanted to post my upgrade experience, I had the OEM towmax tires on my 2012 Avalanche 320rk, they were manufactured in 2011, but had less than 1500 miles on them. After reading all the stori...
Cummins12V98's avatar
Cummins12V98
Explorer III
Aug 19, 2016
Lower chart is exactly what I copied the numbers from for the GY "G" tire on GY's RV tire site. Seems he is on the right track but not as solid in his information as I was given from GY Tech support. They were firm at 5psi over.

As I said I went from a 80psi E load to the "G" tire and ran 85 with perfect results.

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