TeraFlex 3990630 Differential Cover Kit (Dana 30 HD) Install Time: 1 Hour These covers are more than 3/8" thick to ensure protection FITS: all Dana 30 axles Vehicle Type: CJ ; JK Wrangler; JKU Wrangler Unlimited; LJ Wrangler Unlimited ;TJ Wrangler; Jeep SUV ;YJ Wrangler