98 Cherokee Sport - Tire Upgrade and Speedo Cal

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Today | 10:16 AM

Socal Origin

Thread Starter

Newbie

Joined: Oct 2024

Posts: 10

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From: North Georgia

Year: 1997

Model: Cherokee (XJ)

Engine: 4.0

98 Cherokee Sport - Tire Upgrade and Speedo Cal

Hello friends, 1998 Jeep Cherokee Sport 4wd, Auto, 4" Core Lift. Correctlync steering. Nitto 285/70/17. Can anyone tell me with this info what speedo gear I need to be running.
I know the gears are stock but have no idea what they are. Thank you.

Today | 10:57 AM

IJM

CF Veteran

Joined: Jan 2014

Posts: 1,534

Likes: 349

From: District of Columbia

Year: 1998

Model: Cherokee (XJ)

Engine: 4.0

A 285/70-17 tire is just under 33" in diameter. Assuming you're on stock 3.55 gearing, you'd need a 30-tooth speedometer gear. 33s on 3.55 gearing must be a dog. Any plans to regear?

https://www.quadratec.com/c/referenc...ar-tooth-chart