ArvinMeritor Maintenance Manual MM-0361 (Revised 04-10)
Meritor produces a complete line of heavy-duty front drive steer
axles with single axle capacities of 21,000-23,000 lbs
(9525-10 432 kg). Figure 2.1.
Some axle models are available with the following features.
앫Right-hand or left-hand gearing
앫Standard or wide tracks
앫Driver-controlled main differential lock for increased traction
Basic Axle Models Covered in This Manual
Current Axle Models
Front drive steer axle models are identified by a letter and number
system. The letters and numbers give important information about
the specific axle model.
The first seven positions of the designations identify a basic axle
model. The second group of letters and numbers identify particular
As an example, a 21,000 lb (9525 kg) front drive steer axle with a
single-reduction 145 model carrier is identified by the following in
HEAVY-DUTY FRONT DRIVE