Specifications for GM differentials can be somewhat tricky to identify. On this #TechTipTuesday we'll show you how to identify the characteristics of your GM diff by way of an RPO code (or option code), most often found on a factory placed sticker in the interior of your vehicle. We have a full list of GM codes and their meanings available online at www.yukongear.com/downloads.aspx | Yukon Gear & Axle
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