bag on bars on a dually

[luifer76]

does anybody out there know roughly how much weight would a bag on bar set will handle? my 87 dually has a solid bag on bar rear set up is a 2 link with a panhard bar with factory front hangers and 2 2600 lbs bags the bars are 3/16" thick and their 2 1/2'' X 2 1/2 square tubing the bag mounts are solid and the bags are pretty centered on the bars i haven't try to tow heavy loads with it the heaviest i went was the c10 cab on my small motorcycle trailer and it did just fine.... i been thinking about adding a set of another bags over the axle so i can use those for towing purposes.... so the question is will this set up handle a single car trailer with a car on it? ..... i know the tandem axles trailer help with the weight distribution any info/help and opinions would be greatly appreciated...