The M246, with an extra long wheelbase, was a wrecker with a fifth wheel mounted behind the boom.
This let the truck perform wrecker duties and to load and tow semi trailers.
All had a front and rear winch.
Oversize 12.00×20 were used, this was the only model to have this size.
As a wrecker the boom could support 12,000 lb (5,400 kg), as a tractor the fifth wheel load rating was 15,000 lb (6,800 kg).
The M246, with an extra long wheelbase, was a wrecker with a fifth wheel mounted behind the boom. This let the truck perform wrecker duties and to load and tow semi trailers. All had a front and rear winch. Oversize 12.00×20 were used, this was the only model to have this size. As a wrecker the boom could support 12,000 lb (5,400 kg), as a tractor the fifth wheel load rating was 15,000 lb (6,800 kg).
M54 5-ton 6x6 truck