A lead sled is a standard production automobile with a body heavily modified in particular ways[citation needed][dubious – discuss](see below); especially, though not exclusively, a 1949, 1950, or 1951 model year Ford 'Shoebox' or Mercury Eight car.
The same techniques were also used in high end low-volume car production (coachbuilding) and adopted for aftermarket hot rodding body panel modifications.
Given that lead is toxic, the effective management of health hazards arising from autobody work with this material must include the exposure realms of fumes and dusts.
In order to be classified as a "lead sled", the vehicle was subjected to most, if not all, of the following body style modifications:[dubious – discuss]The entire process of removing badges, trim, and doorhandles was referred to as "shaving".
In contrast, an experienced bodyman could control the heat of the lead in a vertical position without having to remove the body part, thereby saving time in performing the repair.