2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

245/75R16 to 275/60R20

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May 10, 2023 | 01:38 PM

#1

andrewren

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245/75R16 to 275/60R20

I have a 99 ram 1500 4x2 stock height and am trying to figure out if I can run 275/60R20’s on my truck without modifying anything. Thanks

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May 10, 2023 | 03:14 PM

#2

jkeaton

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From: Winston Salem, NC

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Thats a 33" tire and almost 3" taller than your current size. I believe it will fit but your speedo will be off by 5 mph at 60. Moved this to the 2nd gen Ram section so others will add their experience.

Last edited by jkeaton; May 10, 2023 at 03:19 PM.

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May 10, 2023 | 03:51 PM

#3

HeyYou

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From: Clayton MI

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Yeah, speedometer will be off by 8.2%..... The shorter sidewall will make it ride rougher. And watch backspacing on your rims, to keep the tire from rubbing on turns.

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May 11, 2023 | 07:58 PM

#4

KillerLemming

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From: Northern Illinois

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I put 285/70/17 on my 2wd 2500 and they fit just fine, but the speedo is off as stated before

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