The Meritor Out of Production Single Reduction Axle Catalog (PB-9108) is a comprehensive parts reference for older axle models, including the 140, 141, 143, 144, 145, 155, 160, 161, 164, and 185 series. It provides detailed exploded views and parts lists for carriers, differential cases, and axle shafts.

1. Technical Specifications & Carrier Identification

The catalog uses a standardized nomenclature system to identify axle configurations:

Axle Type: Identifies the specific model, such as Single Rear Drive (S), Tandem Drive Set (T), or Tridem Drive Set (Z).
Gearing Type: Coded by numbers, such as 1 for Single Speed, 2 for Two Speed, and 3 for Helical Double-Reduction.
Nominal Load Rating (GAWR): Expressed in thousands of pounds (e.g., “20” indicates a 20,000 lb rating).
Carrier Type: Larger numbers generally indicate a higher Gross Combination Weight (GCW) rating.

2. Component Parts and Kits

The catalog organizes replacement parts into functional groups to facilitate ordering:

Carrier Assemblies: Major assemblies for single axles and tandem sets, including models with or without Driver Controlled Differential Lock (DCDL).
Differential Case & Internal Parts: Details for standard, No-Spin, and DCDL differential nests, including spiders, side gears, and thrust washers.
Pinion and Bearing Cages: Parts lists for various pinion configurations, including input shafts and bearing spacers.
Axle Shafts: Comprehensive tables listing axle shaft lengths, spline counts, and body diameters for specific axle series.

3. Major Service Kits

To simplify maintenance, Meritor provides pre-packaged kits:

Bearing Kits: Contain all necessary bearings and cups for carrier overhauls (e.g., Kit 2318 for RS-160 series).
Gasket & Seal Kits: Include all required seals, gaskets, and silicone for assembly.
Shim Kits: Essential for setting pinion depth and bearing preload.

4. Numerical Index and Cross-Reference

The catalog includes a numerical index that cross-references part numbers to the specific page and item number where they appear, ensuring accurate identification of out-of-production components.