Hows the clearance between the duals? That's the main problem with going to oversize tires, the next is clearance when turning the front tires sharply.
I went from 275/70's to 305/70's on the front of our DSDP. Also went to wider Alcoa wheels at the same time. The 305's were the only ones that gave me clearance but even so I have to be sure the front wheels are straight before I dump the air.
2002 Newmar Dutch Star 4090 ISC 350/1050 with Banks Kit, now at least 435/1200
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