ironfangx 400lbs anti-sag stabilizer heavy duty rv bumper support brackets | 4 to 4.5 inches | square & i-beam bumpers |no-weld diy install | fit rv trailer pickup suv 2-pack is up for auction in Automotive. The current bid is $1.00, 98% below the $52.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.