Base Chassis:
Manufacturer: Freightliner (Daimler Trucks North America)
Type: Heavy-duty truck chassis
Axle Configuration: Two-axle (4×2) or Three-axle (6×4) depending on body and payload
Common Freightliner Models Used:
M2 106 / M2 112 — work truck chassis (very common)
Cascadia — larger highway chassis (less common for wireline)
108SD / 114SD — severe duty, higher GVWR
Diesel Options:
Cummins B6.7 / L9 / X12
Detroit Diesel DD8 / DD13
PACCAR PX-7 / PX-9
Typical Power Range:
250 – 450 HP
Torque: 600 – 1,300 lb-ft
(Sized to handle hydraulics, winches, generators, and tools.)
Allison 3000 / 3500 / 4000 Series automatic — preferred for service applications
Manual / Automated Manual (Eaton Fuller) optional
Matched to engine and body requirements
Axles:
Front: Steer
Rear: Drive
GVWR:
26,000 – 52,000+ lb (work truck class varies by model)
Wheelbase tailored to body length
Front: Multi-leaf or parabolic spring
Rear: Multi-leaf or air suspension (for heavier bodies)