Constructed from 1/4in steel the Rough Country differential guards protect your axles from the hazards that can damage your differential. Made for the Dana 30, Dana 35, and Dana 44 axles.Easy bolt-on installation Protects your differential from off-road hazards. Highly durable - constructed from 1/4in steel.30 minuteshttps://s3.amazonaws.com/roughcountry/install/1035.pdf1987-1995:4WD:Jeep:Wrangler YJ