I made a weight set that stabs into the rear of any large frame Elec-Trak. Including the driver it adds to appx 675 lbs on the ‘backporch.’ The weight set is unique, you won’t find it anywhere except on Craigslist North Jersey under the post….'GE Elec-Trak weight set.’ Warning, some will think it costly, before searching the net. Cheers, Jack Casey