Going from 235/55/17 to 265/70/17, anyone else do it
08-03-2014, 09:27 PM
#1
Senior Member
Thread Starter
Going from 235/55/17 to 265/70/17, anyone else do it
I have the factory hankook's on my 2011 that are in need of replacing. Since im buying out my truck im going to get new tires soon. Im set on Goodyear Duratracs or Bridgestone duelle a/t revo 2's in 265/70/17. Has anyone else upgraded from the factor hankooks to another size that isn't a huge increase in size? Has anyone experienced any noticeable mpg drop, i mean more than 2 mpg.
08-05-2014, 04:11 PM
#2
That's a big jump from a 27" tall tire to a 32' tire, so I'm sure your mpg will drop. My 2010 XLT 4x4 with a 4.6 engine and 3.73 rear end came from the factory with 265/70/17 tires and I can get 21 mpg on a relatively flat highway @ 65 mph. I get 17 mpg pretty regularly with 2/3 of the miles highway, and 1/3 city driving.
08-05-2014, 09:46 PM
#3
Senior Member
Thread Starter
The factory hankooks are 235/75/17's, i just did this calculator thing to see how off it would be. im not to concerned now.
235/75-17 265/70-17 Difference
Diameter inches (mm) 30.88 (784.3) 31.61 (802.8) 0.73 (18.5) 2.4%
Width inches (mm) 9.25 (235) 10.43 (265) 1.18 (30) 12.8%
Circum. inches (mm) 97.01 (2463.95) 99.29 (2522.07) 2.29 (58.12) 2.4%
Sidewall Height inches (mm) 6.94 (176.25) 7.3 (185.5) 0.36 (9.25) 5.2%
Revolutions per mile (km) 653.16 (405.85) 638.1 (396.5) -15.05 (-9.35) -2.3%
235/75-17 265/70-17 Difference
Diameter inches (mm) 30.88 (784.3) 31.61 (802.8) 0.73 (18.5) 2.4%
Width inches (mm) 9.25 (235) 10.43 (265) 1.18 (30) 12.8%
Circum. inches (mm) 97.01 (2463.95) 99.29 (2522.07) 2.29 (58.12) 2.4%
Sidewall Height inches (mm) 6.94 (176.25) 7.3 (185.5) 0.36 (9.25) 5.2%
Revolutions per mile (km) 653.16 (405.85) 638.1 (396.5) -15.05 (-9.35) -2.3%
Last edited by steve392; 08-05-2014 at 09:50 PM.
08-07-2014, 02:21 AM
#5
Senior Member
Thread Starter
yea i thought the original size i posted was correct, i was wrong. my bad. Glad to know i'll barely notice. I just cant comprehend how ford could put such a ****ty tire on a pickup in the first place.
08-07-2014, 10:14 PM
#6
Senior Member
yeah I agree...the older fords had smaller tires...but so did most trucks...and I have noticed that the tire size on trucks increase about 2 inches every new gen that's released...but anyways yeah u will hardly notice a difference at all...u would have to go to some 33 or 35 to actually make some changes to ur truck
08-16-2014, 03:20 PM
#7
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I just moved to 265/70/17 Hankook dynapro ATM more aggressive tread but yet it's quieter on the highway than the dynapro AT's. The 235 are ridiculous but these new tires are fantastic.