This is the Crawler™ EXTREME (EXT) Gas Tank to fit a YJ (1987-1995). It is specifically designed to allow the rear axle to be moved back up to 5" (4" on D60) to stretch the Wrangler wheelbase for greater stability on big tires.
Each tank is made from 1/8" thick Aluminum alloy and includes a matching heavy duty 3/16" thick skid plate
Internal baffles reduce fuel movement and keep fuel near the pick up
1" more ground clearance
17 gallon fuel capacity (but with careful filling we got one more gallon in)
All Crawler fuel tanks are designed to accept all the stock Jeep fuel equipment so you will not get any check engine lights or other engine computer issues