Powertrax Grip Pro is the latest design in traction adding differential technology. The Grip Pro features a fully machined Forged steel case along with 3x2 Spiral gear technology. Grip Pro provides progressive and variable traction based off throttle input, you are in control of how much traction is applied. Great for use when finesse is as important as brutal traction. With no clutches or cones to wear out, posi additive is not required or recommended. On the road or on the track, Grip Pro is a Winner!

Recommended oil is standard 80/90 weight (non-synthetic) (no additives).

Application: 1972-2022 Dana 30 & M186 Front end

Axle Spline: 27

Compatible Gear Ratios: 3.73-5.13