Yes on my old weight bar I just ran bolts thru the weights and had a little wing nut that snugged everything up.
But my new Weight box keeps everything nice and neat with the cover .
And remember it's 60" from center of axle to the outer most edge of the weight bar.
And some clubs like ATPA and NTPA use a plumbob to find the outer edge for Truck that have lots of rake built in them.
ShaZam