Product details:

Specs. The Rough Country extended Rear Driveshaft has better CV joints than the factory equipped driveshaft. The shaft itself is twice as strong as the factory model and features grease fittings that are more accessible than the original. Construction. It is recommended that any Wrangler with more than 3 inches of lift be equipped with an extended drive shaft, for those with 6 inch lifts it is required. A CV driveshaft helps avoid vibration in lifted vehicles. Application. This Rough Country Rear CV Driveshaft is designed to be used on the 2007-2011 Jeep Wrangler JKs that has been lifted between 3.5 and 6 inches.