Which is it......battery or ballast ???

[FireSale]

Originally Posted by FED 387

Unless the rules have changed better check on this tho " if you are not running a fuel cell but still are using a "stock" gas tank you can use a gas tank shield located between the top of the tank and the trunk floor as an approved safety device-it is not considered disguised ballast!! Now don't go putting a 1 inch piece of plate steel but you can use either steel or aluminum plate to do this "thin" gauge like 1/4-3/8 inch depending on how much weight you need ---FED 387

According to General Section 4.3 the max for steel plate flooring used as ballast is 18 gauge. 3/64 of an inch max.

Dale

[FED 387]

then it has changed--- how about a spare tire OR you can use heavier cross members too----are you trying to make the additional weight "easily removable" or are you just trying to add additional weight to the car----FED 387