Re: Installing driver-side SMB swivel seat base
The driver side swivel base is raised up to create a cavity below the swivel drum. I'll see if I can get some measurements/pics tomorrow. I do not have any box under our 2002 7.3 driver seat, but the base is definitely designed to accommodate something.
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV Mid Top, Custom Walk Through, Lots of stuff added. BlingMyRig.com