The Mack DM series was a line of heavy-duty trucks, The DM was a heavy duty "U", The "U" was short hood, Offset cab. The “U” and “DM” series were modifications of the “R” series. A short hood, and the shorter “bumper to back of cab” distance, made them useful in straight trucks and in semi-tractors used in congested cities, but caused the engine to intrude into the passenger compartment. To compensate the cab was offset to the left: the engine “doghouse” intruded into the passenger footwell but left the driver’s position intact.
The U was basically a short R, while the DM was an extra heavy duty version often used in 6X4 construction trucks. Like the RMM, the DMM was all wheel drive, but had not only a short hood/offset cab, but also a set back front axle, requiring a model specific fiberglass hood/fender arrangement

Mechanics onsite repair trucks have been utilized in many different industries including heavy construction, railroads, municipalities, mining, agriculture and equipment rental. A mechanics repair truck provide reliability, productivity and safety on the jobsite.

A Mechanics onsite repair truck usually will feature a crane to perform the lifting, heavy duty mechanics drawers for organized tool storage and ample and secure storage within the side compartments, compressor, welder, generator, lube packages and auxiliary lighting.

THIS download is now, 2 trucks (highway) truck and (boom up, working) truck. Uses McEdit to split the apart, Place them

Minecraft 1.12.2 - BPS 1.2 HD pack

Remember this is a SMALLER 4 block wide, 1.5:1 scale vehicle