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Eastcoastdiesel
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Yes you can but it will be a shorter tire. To do the same mph, your truck will be turning more rpm.

Also, verify the carrying capacity of the tire if this is a truck that gets loaded.

Jim

It doesn't cost anything to pay attention.

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Here's a comparison of the two sizes. You can see the speedometer will be off and you will use more RPMs to get the correct speed. Your truck computer may adjust or maybe it can be programed to the new size. One other consideration is the ride with less sidewall and the new tire not being mounted on the correct width rim. Below came from a google search comparing the two sizes.

Side by side Overlay

285/70-17 275/55-17 Difference

Diameter inches (mm) 32.71 (830.8) 28.91 (734.3) -3.8 (-96.5) -11.6%

Width inches (mm) 11.22 (285) 10.83 (275) -0.39 (-10) -3.5%

Circum. inches (mm) 102.76 (2610.04) 90.82 (2306.87) -11.94 (-303.16) -11.6%

Sidewall Height inches (mm) 7.85 (199.5) 5.95 (151.25) -1.9 (-48.25) -24.2%

Revolutions per mile (km) 616.6 (383.14) 697.63 (433.49) 81.03 (50.35) 13.1%

275/55-17 TiresMichelin Latitude Tour HP275/55-R17$229 eachKumho Road Venture APT KL51275/55-R17$155 eachSee All 275/55-17 Tires (7)

Speedometer Difference

Speedo Reading Actual Speed

20 mph (32.19 km/h) 17.68 mph (28.45 km/h)

25 mph (40.23 km/h) 22.1 mph (35.56 km/h)

30 mph (48.28 km/h) 26.52 mph (42.67 km/h)

35 mph (56.33 km/h) 30.93 mph (49.78 km/h)

40 mph (64.37 km/h) 35.35 mph (56.9 km/h)

45 mph (72.42 km/h) 39.77 mph (64.01 km/h)

50 mph (80.47 km/h) 44.19 mph (71.12 km/h)

55 mph (88.51 km/h) 48.61 mph (78.23 km/h)

60 mph (96.56 km/h) 53.03 mph (85.34 km/h)

65 mph (104.61 km/h) 57.45 mph (92.46 km/h)

Gear Ratio / RPMs for New Tire (@ 65 mph) 2.35 2.73 2.94 3.07 3.21 3.31 3.42 3.55 3.73 3.91 4.11 4.27 4.56 4.88 5.13 5.29 5.38 5.71 6.17 7.17

1775 2062 2221 2319 2425 2501 2584 2682 2818 2954 3105 3226 3445 3687 3876 3996 4064 4314 4661 5417

Better Fuel Economy Factory Ratios Increased Power

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I doubt they will have the same load rating either, don't know how much you load your truck but it may be a better idea to use them as trading material to get the right size.

"Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin

"If your gonna be STUPID, you gotta be TOUGH"

"You cant always get what you want, but if you try sometimes you get what you need"

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