BFGoodrich T/A KO2 LT305/55R20

calgator73 · October 23, 2016

Has anyone tried this size (preferably this specific tire) on their 2500 with factory 20" wheels? It's the only 20" size that I can fine that comes close to matching the factory LT265/60R20 specifications for load capacity. Max load seems right, OD & RPM is only 2% off so speedometer will only be off by 1.5 mph at 70.

Will the extra 1.7" of SW cause rubbing since it is only .85" bigger on each side of the tire?

Max pressure only 65 psi? Will it squirm more? I love the tow quality with the factory SRAs and would like to preserve that....but I would like a slightly more aggressive looking tire.

BFG max load max pressure t. depth weight rim range des width section w tread width OD RPM

3,195 lbs. 65 psi 15/32" 61 lbs. 8.5-11" 9.5" 12.4" 10.2" 33.2" 626

GY

3,195 80psi 16/32 7.5-9.5 8.0 10.7 32.5 640

calgator73 · October 25, 2016

?

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Jaimeace · November 9, 2016

Works and looks great. Smooth, no rubbing or trimming since BF KO2's run a bit narrower. Great deal at Costco, $329 each or $1495 out the door. Running a 2.25" Procomp leveling kit in the front only.

EJCarter · November 9, 2016

For comparison, here is a KO2 in 275/60R20 on the factory wheels with a CCM leveling kit. These tires are approx 1" taller than the stock 265/60R20...

No rub either...

EJCarter · November 9, 2016

Here is the tire...

MNHighCountry · November 17, 2016

305/55/R20:

The flares had to be shaved down just a bit (maybe 1/4") to avoid any scrubbing on turns. I'm very happy with the work done. They fill the void in the wheel wells a bit better now.

ron mexico75 · December 7, 2016

So just reading through this thread...I still have the stock tires on and plan on running them until they need replacing. I've always had BFG's on my trucks. The one thing I don't miss though is airing down and airing up whenever I have to haul a load. It seemed that if you ran the max psi on the BFG's, I'd get bounced all over the road and it was a terrible ride with even the slightest bump shaking the truck. Of course that was in my 2002 2500HD and not sure if things have changed since then.

The stock tires are at the psi rating inside the door jamb and it rides fine. Are you guys that are running these BFG's on your trucks running them at the max psi in order to save the headache of aring up and down or do you have them at something else? Just curious for when I'm ready to change over.

I plan on getting them at Costco too, can't beat the prices.

calgator73 · December 28, 2016

So just reading through this thread...I still have the stock tires on and plan on running them until they need replacing. I've always had BFG's on my trucks. The one thing I don't miss though is airing down and airing up whenever I have to haul a load. It seemed that if you ran the max psi on the BFG's, I'd get bounced all over the road and it was a terrible ride with even the slightest bump shaking the truck. Of course that was in my 2002 2500HD and not sure if things have changed since then.

The stock tires are at the psi rating inside the door jamb and it rides fine. Are you guys that are running these BFG's on your trucks running them at the max psi in order to save the headache of aring up and down or do you have them at something else? Just curious for when I'm ready to change over.

I plan on getting them at Costco too, can't beat the prices.

I air down the factory good years to get a better ride unloaded

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WhiTeOuT16HD · February 23, 2017

Will the 305 55 20 fit on the factory 20" wheel? Or is the wheel to narrow? And will it need to be leveled?

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calgator73 · February 25, 2017

Will a wheel with this tire fit under the bed?

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MW2500HD · February 26, 2017

BFG KO2's will fit on stock 20's as other members have shown. I have them on 20x9's with 12mm offset and had to trim my front inner mudflap corners about 1". Only had a minor rub at full lock. I haven't tried, but looking at the spare tire area I would guess a 33" tire would fit just fine.