G2 Axle 2-2012-488 Ring & Pinion

G2 Axle offers two levels of quality and finish. These two product ranges are called internally “1-” and “2-”. Series “1-” is made of materials similar to OEM specifications and series “2-” of racing grade materials.

Part number G2-2-2012-488 as described here by www.4x4proyect.com belongs to series “2-” which means it is a high performance part. It is made out of 8620 thermal treated forged steel. It´s valid for those vehicles Ford Expedition 1997-2012, Ford F150 1997-2012 with 5.4L engine with gear ratio of 4.88.

G2 Axle produces with second to none standards and materials resulting in high quality products that are superior to any competitors like Yukon, USA Gear, Superior Axle and Alloy among others.

Part of this superiority is due to the thermal treatment and final polish. The thermal treatment hardens the material ensuring the highest possible strength. The final polish eliminates all remaining material irregularities thus achieving a smooth surface that ensures a perfect fit and adjustment every time.

To ensure it's quality each and every set of G2 Axle gears has to pass an individual quality control discarding any parts not meeting their strict manufacturing tolerances.