Hey all. Thanks in advance here. I have a 2007 super stretched surburban 2500 HD. It has the Escalde conversion on it done by Classic Coach. Currently running 18’s with a LT275/65R18 tire, which puts it at a 32” total tire diameter.

it’s a stock suspension but I am going to put a leveling kit on it because across the 30+ length, it still looks nose down.

Now, this is going to be a snowmobile rig. Only really used in the winter to get from a to b in comfort on the 6 hour ride up north.

The stretched chassis did not come 4 WD, thus need a great tire that will handle 5 hours on the highway and 1 hour of climbing in the snow.

I am looking to upgrade to 20” wheels and run LT275/65R20 Goodyear Wrangler AT Adventure w/Kevlar on them. Bringing the total diameter to around 34” flat.

Any issues anyone has had with 34”?

What should I run for an off set, 0 or 18mm? Pretty sure factory wheels were 20mm?

what leveling kits do you recommend?

Any further thoughts on the set up? Concerns on snow traction? I am considering making it full time AWD but not this season.

Thank you again.