Specifications

The axle shall be built of superior construction and quality components to provide the rugged
dependability needed to stand up to the fire industry’s demands. The axle shall include rectangular
shaped, hot-formed housing with a standard wall thickness of 0.63 of an inch for extra strength and
rigidity and a rigid differential case for high axle strength and reduced maintenance.
The axle shall have heavy-duty Hypoid gearing for longer life, greater strength and quieter operation.
Industry-standard wheel ends for compatibility with both disc and drum brakes, and unitized oil seal
technology to keep lubricant in and help prevent contaminant damage will be used.
REAR AXLE WARRANTY
The rear axle shall be warranted by Meritor for two (2) years with unlimited miles under the general
service application. Details of the Meritor warranty are provided on the PDF document attached to this
option.
REAR AXLE DIFFERENTIAL LUBRICATION
The rear axle differential shall be lubricated with oil.
REAR WHEEL BEARING LUBRICATION
The rear axle wheel bearings shall be lubricated with oil.
VEHICLE TOP SPEED
The top speed of the vehicle shall be approximately 63 MPH +/-2 MPH at governed engine RPM.
REAR SUSPENSION
The single rear axle shall feature a Reyco 79KB vari-rate, self-leveling captive slipper type conventional
multi-leaf spring suspension, with 57.50 inch X 3.00 inch springs. One (1) adjustable and one (1) fixed
torque rod shall be provided.
The rear suspension capacity shall be rated from 21,000 to 31,500 pounds.
FRONT TIRE
The front tires shall be Goodyear 315/80R-22.5 20PR "L" tubeless radial G289 WHA highway tread.
The front tire stamped load capacity shall be 20,400 pounds per axle with a speed rating of 68 miles per
hour when properly inflated to 130 pounds per square inch.