275/80/22.5 to 11r??

Run 3 to 4 km/hr faster to maintain same rpm no biggie

 

It wont be, but you can order them delivered to the shop of your choice within a week depending on how picky you want to be.

Pricier now than then but isnt everything? Tires i got last year. Low pro 24.5

Warning, if you use that site, use a desktop computer if possible, its pretty terrible on mobile

https://simpletire.com/brands/toyo-...elivery=Del2&curationSource=none&productPos=5

 

Have you ever tried Falken BI830 11R22.5?
I did and I was blown away.
Closed shoulders, 24/32 tread, quiet and wears even across.
Rotate every 6 months. Good for 250K-300K kms minimum..
Priced just about right. Way lower than any Michelin.
Legal disclaimer: Retired truck driver, not selling tires.
Good luck.

 

I bought 4 cases of filters a couple weeks ago. Supplier called me when some Cat filters showed up and I went all hoarder and cleaned him out. I haven’t had any trouble getting Rotella, but I buy by the 975L cube. Case lot jugs and pails are getting a little hit and miss.

 

I made this change with exact spec you have except cm2250 instead of Detroit. About 4 mph gain @70. Slightly less punchy in the throttle and no gain in mpg. Slight loss if anything but probably new tread vs worn mostly. I really don't care for a 10 speed this change made me like it less.