Yukon high performance replacement ring & pinion gear set, Dana 80, 4.88 ratio

This is the Yukon 4.88 ring and pinion set, YG D80-488, a high performance replacement gear set for the Dana Spicer 80.

Fitment

• Axle: Dana Spicer 80
• Ratio: 4.88
• Pinion: 37 spline
• Ring gear: 11.25 inch, 12 bolts
• Listed application: 2011-2015 Ford F-350 Super Duty rear (per one retailer)

4.88 is a deep ratio for a Dana 80, numerically higher than 4.56.

Carrier and fitment notes

A retailer listing says this set fits a 4.10 and up carrier, and lists it for the rear axle of 2011-2015 Ford F-350 Super Duty trucks.

Check before you order

• Ring gear size and pinion: this set is 11.25 inch with a 37-spline pinion, so match it to your Dana 80.
• Carrier: confirm your carrier is the 4.10 and up type. If the truck is a 2011-2015 F-350 Super Duty, that is the application one retailer lists.
• Yukon's page does not list a rotation or a specific list of vehicles for this ratio, so confirm fitment against your axle rather than the truck model.

What's included

Ring gear and pinion only. Installation hardware, carrier parts, bearings and tools are not part of the set.

Installation

A proper setup means checking pinion depth, backlash and contact pattern. This is heavy-duty axle work, so use a shop with gear setup tools if you do not have them.

Warranty

Yukon states a one-year warranty on its ring and pinion sets, and its site also describes a Y.E.S. protection plan for the gear set. Get the current terms from Yukon before you rely on either.

California Prop 65: this product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. More information is at www.P65Warnings.ca.gov.