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Discussion Starter · #2 ·
Ok, just for forum people convenience, I found the answer over at Jeep Garage... answer is, 275/55r 20 will fit a diesel Overland with air suspension, but will not fit the spare tire well. However a 255/70R 18 -will- fit as a spare and still match the other tires size.
 

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Discussion Starter · #3 ·
Also an FYI: I just put 500 miles on the new BFGs. They are even noisier than I remember from the last set I had, but the mind tunes that out soon enough. They cost between 3-5 MPG to run. I got 22.9 avg, on the exact same 500 mile drive I did a ways back that got 27.3. However the traction control plus those tires renders the vehicle essentially immune to snow and all weather. Quite looking forward to having some fun in deep snow with this setup.
Oh, and the vehicle went from looking slightly wimpy on stock Forteras to looking like a badass. I like it.
 

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Also an FYI: I just put 500 miles on the new BFGs. They are even noisier than I remember from the last set I had, but the mind tunes that out soon enough. They cost between 3-5 MPG to run. I got 22.9 avg, on the exact same 500 mile drive I did a ways back that got 27.3. However the traction control plus those tires renders the vehicle essentially immune to snow and all weather. Quite looking forward to having some fun in deep snow with this setup.
Oh, and the vehicle went from looking slightly wimpy on stock Forteras to looking like a badass. I like it.
Pictures Please:D
 

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Discussion Starter · #5 ·
I might if I get a chance. The air suspension plus those tires make the damn thing -look- like a really well done lift. Also, we just had 6 inches of snow last night so I finally got a chance to try the thing in maximum bad with maximum tires on it. Roads were empty except for a highway lined with cars that had slid off the road.
It was... ridiculous.
I can now report that, armed with decent tires, the 2014 Grand Cherokee Overland diesel is a technological triumph.
The only way to crash the damn thing would have been to get up to a speed so stupid even the traction control can't entirely deal with it.
It launches as if the snow did not exist. I -tried- to make it slide. It refused. It handled as if I were driving it in sand, on a beach. I pulled out of a gas station hard right while stomping the gas. Might as well have been on pavement with a little more sand and gravel on the surface than usual. My old 2000 GC, was invincible with those tires, but took careful throttle management or else it would do a 4-wheel powerslide in whatever direction you were going.
This thing, just goes, whereever you point it, with absolutely no drama whatsoever. There's no kill like overkill, and this thing, is ridiculous overkill. A child with zero experience behind the wheel could safely pilot this thing in the worst howlers winter has to offer. The only thing left to worry about is stopping distance, since there's no amount of traction control that can compensate for going faster than the limits of tires on ice.
Basically, 2014 GC diesel + BFG KO2's is the last word in all--weather vehicles. Never felt -that- secure behind the wheel in a storm in my life. It's invincible. 100%, totally, invincible. The only thing that can get you driving this setup is your own overconfidence.
 
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