The width of the axle shafts is 1.31 inches. Rubicon models come standard with a 4.10 rear gear ratio and also use a Dana 44 axle in the front with either a 3.73 or 4.10 gear ratio. The Dana 44 ring gear size is 8 ½ inches. The width of the axle shafts is 1.13 inches.ĭana 44: These are the beefier axles found on the rear of all Wrangler models now with either a 3.21 or 3.73 gear ratio. They came with either a 3.21 or 4.10 gear ratio. They had a ring gear diameter of 7 and 9/16 inches. Both TJs and YJs, however, use a 5x4.5 inch bolt pattern.ĭana 35: This was an axle size used on most Jeep rear axles. The YJ Dana 30 hold a reverse cut ring and pinion, but the TJs do not. The width of the axle shafts is 1.13 inches. The Dana 30 gear ratios are either 3.21 or 3.73. They have a ring gear diameter of 7 and 1/8 inches. The number in the name (Dana 30, Dana 44, etc.) is in reference to this.ĭana 30: This axle size is the most common, and you'll only find it on the front of Jeep. Aside from the Dana differential covers, the biggest difference between the axles is the size.
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