USA Standard Ring & Pinion Gear Set Dana 80 11.25in 3.73 Ratio w/ Install Kit 4.125in OD Head BRG

USA Standard Gear Ring Gear & Installation Kits are an easy way to re-gear a differential with one simple part number. The kits package a ring and pinion set with a Master Installation Kit that contains all the bearings, seals, and small parts needed for a proper install. USA Standard Gear employs rigorous in-house quality testing and inspections to ensure its gears pass dimensional, material, and fitment testing. Available in a wide variety of OEM and aftermarket ratios, USA Standard Gear ring and pinion sets are ready to withstand the rigors of everyday commuting, trail running, and all types of spirited driving.

Additional Information

USA Standard 11.25" Dana 80, 3.73 Ratio Rear Ring & Pinion Gear Set and Master Install Kit Package,

Part Type

Differential Ring and Pinion Kit

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• Fits Carrier Cases Designed for 3.73 and Down Gear Ratio
• For Applications with 10 Bolt Rear Cover and 12 Bolt Ring Gear
• Quick Kits feature USA Standard ring and pinion gear set, Master Install kit with high quality Koyo bearings and the necessary small parts required to get vehicles off the lift and back on the road quickly.
• Quick Kits provide a one-stop shopping experience that allows you to easily find the correct parts for common differential repairs at an affordable price.
• The Ring Gear Diameter is 11.25"
• This particular kit contains a 3.73 Ring & Pinion Gear Set
• USA Standard Quick Kits provide four convenient differential repair packages to save time and money by including everything you need in one simple part number.

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information