My ThumperXJ Tows Horse trailers, car trailers, garbage trailers, boats, other vehicles,
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Towing should add weight to the XJ but normally this weight is very low on the XJ and in the middle. This weight does not effect the XJ roll, much anyway
But put about 900 LB in the XJ and 2 to 300 on top and she rolls like a pig in mud. Then drag some 4280 LB anchor behind you and your looking for over sized sway bars. Well I did. Plus high rate springs and 4 shocks in the rear. I would not leave home without any of it.