2 Introduction
3
Meritor Maintenance Manual MM-15103 (Issued 07-17)
2 Introduction
Description
13X Series Rear Differential Carrier
The Meritor 13X series single rear differential carrier is a
single-reduction, front-mounted carrier designed for medium duty
applications. It utilizes the latest axle technology to offer optimized
power density, light weight and high efficiency. The MS-13X is a
replacement option for applicable MS-14X and RS-145 models.
Figure 2.1.
The 13X offers the following features:
앫 Up to 59 pounds lighter than the MS-14X carrier
앫 Uses same axle housing as currently used in MX-14X/RS-145
designs
앫 GAWR: 17,000-21,000 pounds
앫 GCW: 40,000 pounds
앫 L and R spindle options
앫 Ratio range of 3.90-6.50
앫 Driveline parking brake-compatible
앫 All bearings in the carrier are tapered roller bearings
Figure 2.1
Stall-Testing Can Damage a Drive Axle
Stall-testing is a procedure used to troubleshoot transmissions,
evaluate vehicle performance, and test the service and park brakes.
During stall-testing, or any similar procedure, the drive axle input
receives multiplied torque, which can exceed the specified torque
rating. Excessive torque can damage a drive axle, which will affect
axle performance and component life. A drive axle damaged by
stall-testing will void Meritor’s warranty.
Call the Meritor OnTrac™ Customer Call Center at 866-OnTrac1
(668-7221) if you have questions regarding stall-testing.
Use of Traction Chains
Meritor recommends that if you are using traction chains, you
should install chains on both tires on each side of all drive axles on
the vehicle.
Identification
Model Number
An identification tag is attached to the axle housing or the
differential carrier. Figure 2.2 and Figure 2.3. Use the model
number and the ratio number marked on the identification tag and
the number on the carrier to obtain replacement parts.
Figure 2.2
Figure 2.1
4011903a
DRIVE PINION
AND RING
GEAR
TAPERED
ROLLER
BEARING
TAPERED
ROLLER
BEARING
TAPERED
ROLLER
BEARINGS
DIFFERENTIAL
GEARS
Figure 2.2
Model No. . . . . . . . . . . . . . . . . . . .
Customer No.
. . . . . . . . . . . . . . . .
Serial No. . . . . . . . . Plant . . . . . . . .
Ratio . . . . . . . . . . . .
IDENTIFICATION TAG
LOCATION OF THE IDENTIFICATION TAG, OR STAMP
NUMBER, FOR THE AXLES. LOCATION IS
DETERMINED FROM THE LEFT DRIVER SIDE
LOOKING TOWARD THE FRONT OF THE VEHICLE.
FRONT ENGINE DRIVE — RIGHT REAR,
NEXT TO COVER
4008141a
AXLE IDENTIFICATION TAG INFORMATION
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