Pontiac GTO Differential Seal Kit - Rear - Yukon Gear & Axle - Yukon Mighty Seals - `03-`06. This rear differential side seal kit is a direct-fit replacement designed for 2003–2006 Pontiac GTO applications, specifically the 7.75" IRS rear differential. It restores proper sealing at the stub/drive axle interface to help prevent leaks and contamination.

Manufactured by Yukon Gear & Axle as part of the Mighty Seals line, this seal kit uses modern design and machining practices to deliver consistent dimensions and reliable engagement with the axle and housing. It replaces worn or damaged axle seals (stub axle/drive axle shaft seals), helping protect differential gears and bearings from fluid loss and debris. Fitment is for the GTO 2003–2006 rear differential; part reference YMSG1019 is associated with this seal application.

Features

• Direct-fit for 2003–2006 Pontiac GTO 7.75" IRS rear differential
• Yukon Mighty Seals engineering for precise sealing performance
• Replaces rear stub axle / drive axle shaft seals to prevent leaks
• OEM-compatible dimensions; easy installation with standard tools

If you have questions about fitment or installation, call us directly — we’re happy to help. For service and customization we offer installation at our two locations in Austin, Texas and the Los Angeles, California area. Call Austin at 512-982-9393 (TX) or Los Angeles at 562-981-6800 (CA). If you are considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov