These affordable high strength gear sets come in all the popular ratios to satisfy everyone’s gearing needs. Dana is the stock differential for a large segment of domestic cars, trucks and SUVs. Jeep WJ - (96.5-Present) Click on a differential below to view photos, measurements, and carrier breaks, as well as applicable models, and available parts, for that particular fitment. ECGS for the best Dana 30 brand name parts online from Precision Gear, Motive Gear, Yukon, ARB, Lock-Right, Detroit Locker and other fine performance parts suppliers.

They made the gearing shorter to make it easier to spool up. The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear, to provide you with a result to 1 ratio. On some tags, the first 2 digits don’t appear on the tag, but they must be used to identify the axle. Yukon Gear Dana 30 Front Axle Ring and Pinion Gear Kit; 4.11 Reverse Gear Ratio (87-95 Jeep Wrangler YJ) Yukon Gear Bearing Install Kit for Dana 44 Rear Differential (07-18 Jeep Wrangler JK) Yukon Gear Dura Grip Differential for Dana 44; 30 Spline 3.73 and Down Gear Ratio (03-06 Jeep Wrangler TJ Rubicon; 07-18 Jeep Wrangler JK) Made from high quality 8620 forgings and Gleason gear cutting technology, these gears are made to last. The Dana 30 ring gear diameter is 7 1/8″ and comes with a 3.21 gear ratio unless your JK is equipped with the tow package. For example, if the pinion gear has 41 teeth, and the ring gear has 11 teeth, the ratio would be calculated as 41/11 which = 3.73 so 3.73:1. Motive Gear (D30-488TJ) Performance Ring and Pinion Differential Set, Dana 30 TJ style, 39-8 Teeth, 4.88 Ratio by Motive Gear Only 9 left in stock (more on the way). Ring and Pinion Gear Sets – For use with Dana® Axles: Ring & Pinion Gears for use with Dana 30™ & M186: Sierra Gear & Axle Part # Dana 30™ 3.54 Ratio R&P: SG D30-354: Dana 30™ 3.73 Ratio R&P

The ring gear diameter in the Dana 44 is 8 1/2″, and comes standard with a 4.10 gear ratio… The Dana 60 rear end overall strength, plentiful availability, heavy duty housing, strong knuckles, and unsurpassed aftermarket support make the Dana 60 (S60) one of the automotive industry’s most popular axles. A Dana 60 (D60) Ring Ring gear measures 9.75 inches.

This page is a Differential Gear Ratio Chart for comparing tire size to axle gear ratio and the combined effect on power and fuel economy.
Gear Ratio and Tire Size Calculator - 4x4 and Jeep Ring & Pinion When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. Forget about highways. Strange Engineering offers several options for Dana 60 gears ratios. The Dana 30 doesn’t come with any factory LSD or locking differential. Jeep Dana 30 Diff Applications Include: Jeep CJ Front - (72-86) Jeep TJ Front - (97-Present) Jeep Liberty Front - (01-Present) Jeep ZJ - (96.5-Pres.) Dana front and rear differentials can be found most commonly in Jeep, Ford and Dodge vehicles.

A good way to calculate this is to multiply .12 by your Jeeps tire diameter (Example: .12 X 38" = 4.56). Oversized tires require higher ring & pinion ratios to restore performance.

Dana 60 Gears. Dana Spicer Drivetrain Products 706930-4X - Spicer Drivetrain Products Ring and Pinion Gears Compare Ring and Pinion Gears, 4.10:1 Ratio, Reverse Rotation, Dana 30, Set
Traditional BOM’s are 6 digits followed by 1 or 2 digits and start with the numbers 60 or 61. Put 33's on it and not only do you risk breaking your Dana 35 rear axle, but you will be getting nowhere fast. ... the gear ratio, the type of differential, and all component parts. 4.88 is the biggest gears you can fit in the stock D30 and D35 axles, which should put your tire and gear ratio back to factory with 33" tires. Helpful tips from the experts at West Coast Differentials.