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**RyanAK** · 07-25-2019, 11:27 AM

Thanks, AJC. I appreciate the info. I knew to use straight 30 weight, and will definitely run a matching set of 4. I'm only looking to go to a 15x8 or a 16" wheel. Not 10" wide. 3.73 gears so figured I was good with 31"-32" tires. With a 31", I'd get under 3000rpm at 70mph on the highway. 32", a bit less than that.

Does the AWD feature of the NP203 limit it as far as highway driving?

16" rims would get me an E rated tire.

Summit currently only has the 15x7 Series 62 wheels listed. That would get me on 31x10.5-15 rubber. Could always go rally wheels or wagons...

07-25-2019, 11:27 AM	#14
RyanAK Senior Member Join Date: Feb 2013 Location: Mifflinburg, PA Posts: 304	Re: Yet to be named... ‘78 K10 Suburban Thanks, AJC. I appreciate the info. I knew to use straight 30 weight, and will definitely run a matching set of 4. I'm only looking to go to a 15x8 or a 16" wheel. Not 10" wide. 3.73 gears so figured I was good with 31"-32" tires. With a 31", I'd get under 3000rpm at 70mph on the highway. 32", a bit less than that. Does the AWD feature of the NP203 limit it as far as highway driving? 16" rims would get me an E rated tire. Summit currently only has the 15x7 Series 62 wheels listed. That would get me on 31x10.5-15 rubber. Could always go rally wheels or wagons... __________________ Ryan - WANTED: '60-'66 4X4 Suburban/Carryall Meet 'Earl', '71 C10 Suburban - Sold, but not forgotten... Meet... yet to be named, ‘78 K10 Suburban Daily Driver