275/65R20 (34.1”) installed on stock AT4

8086bruce · Jan 28, 2022

I thought I would post that I was able to install 275/65R20 34” tires on a stock AT4 with zero rubbing or issues. I also have the larger splash guards also installed. Still no issues. I searched and could never find a 100% answer so I’m posting it hoping others searching find it helpful. Thanks!

LamboTexas · Jan 28, 2022

Those look great! Very nice. One more thing: based on your new 275/65 20’s do you think there is room for .5” more- specifically the 285/ 60 20’s (34.6”) tires?

8086bruce · Jan 28, 2022

I went with Good Year ultraterrian AT. Kind of an AT version on the Durra Trace. I like them so far.

8086bruce · Jan 28, 2022

LamboTexas said:
Those look great! Very nice. One more thing: based on your new 275/65 20’s do you think there is room for .5” more- specifically the 285/ 60 20’s (34.6”) tires?

285/60R20’s are 33.6. These are 34.1 so that would be no problem. Now if you meant 285/65r20 that would be 34.5 and I think would run. The nice thing about the 275/65’s is yes they are a full inch taller but are the same width at stock. When you go to the 285’s they are half in wider.

8086bruce · Jan 28, 2022

Couple moor of the tires. Sorry it’s winter and sloppy in Northern MN.

zeeya · Jan 28, 2022

I’m wishing I would have went with my standard 275/65/20 KO2’s that I usually run. Heck, the 275/60/20 KO2’s are actually 32.9 whereas stock was 33”. Speedometer off by 1 mph

They look small. “D” rated

I should have done the same as you.

LamboTexas · Jan 28, 2022

8086bruce said:
285/60R20’s are 33.6. These are 34.1 so that would be no problem. Now if you meant 285/65r20 that would be 34.5 and I think would run. The nice thing about the 275/65’s is yes they are a full inch taller but are the same width at stock. When you go to the 285’s they are half in wider.

Sorry, yes I did mean the 285/65’s

harry white · Jan 29, 2022

Anyone ever try 325/60/20? I'm trying to get new tires. wondering if 35.5 is too big?

GhostComanche · Jan 29, 2022

8086bruce said:
I thought I would post that I was able to install 275/65R20 34” tires on a stock AT4 with zero rubbing or issues. I also have the larger splash guards also installed. Still no issues. I searched and could never find a 100% answer so I’m posting it hoping others searching find it helpful. Thanks!

Same shoes for me. That are tight on larger splash guards, but clear with about 1/4" to boot. Not sure this size in a rougher tire would make it..............RR

Regular Cab Duallies · Jan 29, 2022

Wow, looks good, and right.

LamboTexas said:
Those look great! Very nice. One more thing: based on your new 275/65 20’s do you think there is room for .5” more- specifically the 285/ 60 20’s (34.6”) tires?

Do the 285/65r20s already... They would be perfect on your rig.

8086bruce · Jan 30, 2022

harry white said:
Anyone ever try 325/60/20? I'm trying to get new tires. wondering if 35.5 is too big?

What it looks like on mine is the 275/65R2(34.1”) is about max at stock height. You maybe able to do the 285/65R20’s with just a slight rub but nothing larger. I will say the 34’s fill up the stock wheel wells, especially in the front.

Oldschool · Mar 3, 2022

8086bruce said:
What it looks like on mine is the 275/65R2(34.1”) is about max at stock height. You maybe able to do the 285/65R20’s with just a slight rub but nothing larger. I will say the 34’s fill up the stock wheel wells, especially in the front.

Do you have any pics with those tires? I don’t want to lift my truck any further than stock but I also want to fill up that wheel well without any cutting or trimming. Thanks

8086bruce · Mar 4, 2022

Oldschool said:
Do you have any pics with those tires? I don’t want to lift my truck any further than stock but I also want to fill up that wheel well without any cutting or trimming. Thanks