Ring & Pinion Set For Dana TJ 30 Short Pinion In A 3.55 USA Standard GearUSA Standard Ring and Pinion replacement gear set for Dana TJ 30 Short Pinion in a 3. 55 ratio. USA Standard ring and pinion sets are the right choice to add confidence to your install. USA Standard Gear offers a full line of ring and pinion sets for a variety of common and hard to find applications. USA standard gear offers a standard one year warranty against defects on their ring and pinion sets Features and Benefits: All USA Standard Ring and