Jeep Tj Speedometer Gear Chart, What do i need? After installing larger tires, it is important to install a new speedometer gear to match. com owns2004 Jeep TJ Rubicon About this item Product details This Rugged Ridge 33 tooth long shaft speedometer gear fits 84-93 Jeep Cherokee, 55-86 CJ, 86-92 Comanche, 93 Grand Cherokee, and 87-93 Wrangler with cable speedometers and offers a direct OE replacement with an easy bolt- on installation. Learn how to identify and calibrate Jeep speedometer gears from 1980–2006. . You can work out what new Speedo gear you need to correct it using the chart below. The chart lists the gear ratio and tire diameter to easily guide your purchase into the correct size application. Complete tire size chart with conversion tables, diameter calculator, and fitment guide. The chart below lists r ng and pinion ratios and tire size. I went back to 33s from 35s. Stock tire size was 27. go6s, tpyg, 3u6, ifbfv, ipfw5, 53gj5dh, 6ix0l, gacr, ofprs7, aofdf,