Hi dieseldean76, I can't help you with tire size, but I can welcome you to one of the best forums on the WWW..
You will find the most friendliest helpful people on this forum!
Don't know where in NY you are from, but there is a M&G in Old Forge (Adirondacks) coming up September 20-23, 2013......just a friendly group who meets once a year, some of us are known as SOB's (some other brand owners a/k/a/ former Sunline owners). If you get a chance check out the post and we hope to see you in September!
Kathy & Leo SUN 093
Central Adirondacks of New York
2013 Rubicon 2900 Toy Hauler
We loved our 2007 T-2499
2010 Ford F-350 4x4 Lariat Super Crew Dually Diesel