RPMs

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Mar 11, 2019 | 06:55 AM

RGPolo

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Tuned

Joined: Jan 2018

Posts: 298

Likes: 5

RPMs

I am at 2000 RPMs at 75 MPH, 275/70/18 tires, 3.73 gears. Curious what the RPMs are with 245/75/17 tires, 3.73 gears. Also wonder if the "Bump Steer" is less with the smaller tires? I have stock front end w/plow package.

Mar 11, 2019 | 07:29 AM

llmflyfisher

Senior User

Joined: May 2018

Posts: 452

Likes: 17

From: Corpus Christi TX

https://www.tacomaworld.com/tirecalc

Just plug in original tire size and new tire size, it will show you net effect of the new tire size comparatively.

Mar 11, 2019 | 07:47 AM

Kevinm1980

Senior User

Joined: Jul 2018

Posts: 125

Likes: 1

My 18 cclb 4x4 f350 has the 17" tires you mentioned now my 19 has the 18" did notice the smaller tires did have less bump steer but.. New truck has camper package and old one did not, so not quite apples to apples comparison,, front springs on my 18 were 5200# compared to 5600# on new truck