140, 141, 143, And 145 Series Drive Axle Parts

Revised 1/03140, 141, 143, and 145 SeriesDrive Axle PartsSingle Axles and Tandem AxlesCatalog PB-9147Strength Power Speed AgilityM E R I T O RPA R T S .R I G H TF R O MT H ES TA R T.

HOW TO USE THIS CATALOGThere are 51 basic carriers covered in this -Z-18723200-L-16243200-W-1817 -J-19863200-K-19873200-L-19883200-W-2051Major assembly differences such as oil pumps, main diff. locks, etc. are indicated by the differentassembly level numbers as well as the base carrier part number. The Axle Models-CarriersFeatures Chart inside this front cover lists all the variations of the carriers covered in this book.Note: The carriers listed in this catalog do not include yokes. A yoke is a major assemblydifference, so a carrier sold with a yoke has a different assembly level number than the samecarrier without the yoke.The charts for carriers, output shafts, and axle housings include the following information:y An exploded view of each assembly, keyed to the parts list.y A description of each part.y Parts that are sold as assemblies that include other parts.y Which carriers or axle models the part is used on.y The quantity of the part used on the carrier or axle.y The part number of each part.y Whether the part is available in a kit.Carrier Parts: Determine which Chart and Figure (1 or 2) applies to your carrier by using thefollowing sources of information:y Identification tag installed on the carrier.y Axle Models-Carrier-Features Chart.y Pictures and descriptions of the carriers inside the front cover and at the beginning of Chart 1and Chart 2.Output (Thru) Shafts: This chart covers the output shafts for the forward axles of all tandems.Note that the output shaft assembly or its components are only sold as separate items. The outputshaft is not included with the purchase of a carrier or housing.Housing Assemblies and Wheel End Parts: This chart covers the housing assemblies andwheel end parts for all axles. The parts are listed according to axle models and the two wheel endseries (L Series or R Series) that are used on 140, 141 and 145 series axles.Axle Shafts: The axle shafts are grouped in sets (L.H. and R.H.) according to the axle models theyare used on. Many axle shaft sets are used on more than one axle model. The axle shafts are alsolisted by part number with dimensions.Yokes and Flanges: There are four charts that cover full round bearing yokes, wing bearingyokes, Easy Service yokes, and flanges. Each chart lists the yokes or flanges used on each axlemodel. The yokes and flanges are listed by dimension.Kits: The first chart lists all the kits available for each axle model and carrier. Following that chart,the kits are listed in numerical order, and the contents of each kit is listed.Numerical Parts Index: This lists every part number in the catalog along with the page(s) on whichthe part is listed.

STANDARD CARRIER SUPERCESSION LISTORIGINALPART 3200-T-1814A8-3200-T-1814REPLACEMENTPART 8-3200-B-1978ORIGINALPART 4REPLACEMENTPART e part number supercessions listed here reflect product improvements made in several key areas.Several of these product improvements are non-interchangeable at the component level. In these cases,kits have been developed to ease your transition to the new designs.

Rear Drive AxlesModel Numbers and Designations - OLD STYLENominal Axle Load Rating (GAWR):In thousands of pounds. Individual forwardand rear axles of a tandem set (D, N, P, R)are rated as single axles. A tandem set (T) israted as the combination of the two axles anda tridem set (Z) as the combination of thethree axles.Gearing Type1 - Single Speed2 - Two Speed3 - Helical Double Reduction4 - Salisbury Single Speed5 - Planetary Double Reduction6 - Hub ReductionRR 20 1 4 5Manufacturing LocationA - AustraliaB - Brazil (Braseixos)C - IndiaD - Mexico (Dirona)E - Europe (C.V.C.)M - Europe (Maudsley)N - U.S.A.Main Differential Nest TypeB - Special DifferentialC - Driver Controlled Differential LockF - Standard DifferentialH - High Traction DifferentialN - NoSPIN DifferentialN C Q F 123Hub Type (See Note 3)A - AluminumF - FerrousN - NoneAxle TypeC - Single Rear Drive Axle, CoachD - Forward-Rear Axle of a Drive Tandemwith Inter-Axle DifferentialN - Forward-Rear Axle of a Drive Tandem orTridem without Inter-Axle DifferentialP - Forward-Rear Axle of a Drive Tandemwith Inter-Axle Differential and PumpR - Rear-Rear Axle of a Drive TandemS - Single Rear Drive AxleT - Tandem Drive Axle SetZ - Tridem Drive Axle SetBrake TypeC - Dura-Master Air Disc BrakeD - RDA Stopmaster Wedge Brake(Dual Air Chambers)E - RDH Stopmaster Wedge Brake(Dual Hydraulic Cylinders)F - RSH Stopmaster Wedge Brake(Single Hydraulic Cylinder)L - QPlus Cam BrakeN - NoneP - Cam-Master "P" Series Cam BrakeQ - Cam-Master "Q" Series Cam BrakeS - RSA Stopmaster Wedge Brake(Single Air Chamber)T - Cam-Master "T" Series Cam BrakeW - Cam-Master "W" Series Cam BrakeAxle Specification NumberIdentifies specific customer axleconfigurations (variations from the originalaxle design). For information about thevariation, see the Bill of Material for thatspecific axle model.Carrier TypeCarrier size. Larger numbersindicate a higher GCW ratedcarrier: i.e., larger ring gear, etc.(Also see Tridem Axle Note 2below.)NOTE 1:If a complete axle designation is not required, use the first seven positionsof the model designation to identify the basic axle model.EXAMPLES OF BASIC AXLE MODELS:RS 17 140 - Single Rear Drive, 17,000 lb., Single Speed, 15" Ring Gear,140 Carrier Model.RT 48 380 - Tandem Drive Axle Set, 48,000 lb., Helical Double Reduction,19.62" Ring Gear, 380 Carrier Model.RZ 60 164 - Tridem Drive Axle Set, 60,000 lb., Single Speed, Includes a150 Series Forward Rear or First Axle and a 145 SeriesTandem Axle Set as the Second and Third Axles.Axle Design VariationIndicates axle design level orvariation, (e.g., RS 23 161 has athicker wall housing than the RS23 160). For information see theBill of Material for that specificaxle model. (Also see TridemAxle Note 2 below.)NOTE 2, FOR TRIDEM AXLES ONLY:For a Tridem Drive Axle Set (RZ), thenumber in the sixth position designatesthe carrier in the first axle. The numberin the seventh position designates thecarriers in the second and third axles.NOTE 3:Some axle designations orspecifications do not have a hubtype code.

Rear Drive AxlesModel Numbers and Designations - NEW STYLEAXLE MODEL TYPES Single Rear (Solo)X Front Drive SteerD Fwd Rear w/IADN Fwd Rear less IADP Fwd Rear w/PumpR Rear RearT Tandem DriveZ Tridem DriveC CoachH High EntryRELATIVE GEARINGSIZE OR SERIES0 No Gearing1 292/3472 337/3873 TBD4 381/4325 415/4326 432/4577 4578 460/498MFG. LOCATIONN North AmericaS South AmericaE EuropeA Australia/Asia/AfricaBRAKE TYPEB "B" Frame BrakeC Air Disc BrakeD Wedge Brake (Dual Air Chambers)E Wedge Brake (Dual Hydraulic Cylinders)F Wedge Brake (Single Hydraulic Cylinder)G DuraPark Hydraulic DrumH Quadraulic DiscK Disc Plus Air DiscL Q Plus Cam BrakeN NoneP "P" Series Cam BrakeQ "Q" Series Cam BrakeR Cast Plus BrakeS Wedge Brake (Single Air Chamber)T "T" Series Cam BrakeW "W" Series Cam BrakeM x - xx - 1 4 x x N - x - N 123 - xxxx - xxxxM MeritorAXLE TYPE0 No Carrier1 Single Speed2 Two Speed3 Helical Dbl Red4 Salisbury5 Planetary Dbl Red6 Hub Reduction7 Portal9 Single Speed withTorque OutputLimited EngineGAWRxx GAWR (000) Pounds or Tonnes(dependent on mfg. location)Ratio 1CARRIERVARIATIONA AluminumD DuctileM DuctileRear(Amboid)N No CarrierR DuctileFront DriveAxle Carrier(Right Hand)T DuctileTelmaHSG WALL0 Cast1 TBD2 8 mm3 9.5/10.0 mm4 11 mm5 12.7/13.0 mm6 14.3 mm7 TBD8 16 mm9 TBDRatio 2SPEC. NO.Includes: TRACK,PARKING BRAKE,OTHERWHEEL END/BRAKE ATTACHMENT/DIFFERENTIALA Conventional Spindle/Conventional Brake/Standard DiffB Conventional Spindle/Conventional Brake/DCDLC Conventional Spindle/Conventional Brake/No-SpinD Conventional Spindle/Conventional Brake/Other DiffE Unitized Spindle/Conventional Brake/Standard DiffF Unitized Spindle/Conventional Brake/DCDLG Unitized Spindle/Conventional Brake/No-SpinH Unitized Spindle/Conventional Brake/Other DiffJ Conventional Spindle/Integral Brake/Standard DiffK Conventional Spindle/Integral Brake/DCDLL Conventional Spindle/Integral Brake/No-SpinM Conventional Spindle/Integral Brake/Other DiffN Unitized Spindle/Integral Brake/Standard DiffP Unitized Spindle/Integral Brake/DCDLQ Unitized Spindle/Integral Brake/No-SpinR Unitized Spindle/Integral Brake/Other DiffS Bolt-On Conventional Spindle/Conventional Brake/No Diff

TABLE OF CONTENTSPAGEForward Carriers of Tandem Axles 3Carriers for Single Axles and Rears of Tandem Axles 10Output (Thru) Shafts 19Housing Assemblies and Wheel End Parts 20Axle Shafts 21Yokes and FlangesFull Round Bearing Yokes 24Wing Bearing Yokes 25Easy Service Yokes 26RPL Yokes . 27Companion Flanges 28Axle Model to Carrier to Kit Cross Reference 29Kits 35Numerical Parts Index 491

CHART 1FORWARD CARRIERS OF TANDEM AXLES(Use with Figure 1, Inside Front Cover)VISUAL IDENTIFICATION OF FORWARD CARRIERSIAD SHIFTER:BOLT ON FOR 1624, 1902, 1911, 1918SCREW-IN FOR 1817, 1877, 1888,1906, 1987 AND 1988 CARRIERSOIL FILTERIAD SHIFTER:BOLT ON FOR 1677 AND 1903SCREW-IN FOR 1815, 1875, 1890,1905, 1981 AND 1982 CARRIERSNO OIL FILTERDIFF. LOCK:BOLT-ON FOR 1624 AND 1817 CARRIERSSCREW-IN FOR 1877, 1888, 1902, 1906,1911, 1918, 1987 AND 1988 CARRIERSFORWARD CARRIERS WITH IAD, DIFF. LOCKAND OIL PUMP: 3200-L-1624, 3200-W-1817,3200-E-1877, 3200-P-1888, 3200-D-1902,3200-H-1906, 3200-M-1911, 3200-T-1918,3200-K-1987, 3200-L-1988IAD SHIFTER:BOLT-ON FOR 1662 AND 1914SCREW-IN FOR 1816, 1853, 1876,1894 AND 1986 CARRIERSOIL FILTERDIFF. LOCK:BOLT-ON FOR 1677 AND 1815 CARRIERSSCREW-IN FOR 1875, 1890, 1903, 1905,1981 AND 1982 CARRIERSFORWARD CARRIERS WITH IAD ANDDIFF. LOCK WITHOUT OIL PUMP3200-M-1677, 3200-U-1815, 3200-C-1875,3200-R-1890, 3200-E-1903, 3200-G-1905,3200-E-1981, 3200-F-1982IAD SHIFTER:BOLT ON FOR 1645 CARRIERSCREW-IN FOR 1814, 1852, 1860,1874, 1917, 1978, 1979 AND 1980NO OIL FILTERNO DIFF. LOCKFORWARD CARRIERS WITH IAD AND OIL PUMPWITHOUT DIFF. LOCK: 3200-X-1662,3200-V-1816, 3200-G-1853, 3200-D-1876,3200-P-1914, 3200-H-1984, 3200-J-1986NO DIFF. LOCKFORWARD CARRIERS WITH IAD WITHOUT DIFF.LOCK OR OIL PUMP: 3200-G-1645, 3200-T-1814,3200-F-1852, 3200-N-1860, 3200-B-1874, 3200-S-1917,3200-B-1978, 3200-C-1979, 3200-D-1980THE FOLLOWING CARRIERS ARE EQUIPPED WITH A THRUST SCREW:3200-A-1873, 3200-B-1874, 3200-C-1875, 3200-D-1876, 3200-E-1877, 3200-F-1904, 3200-G-1905,3200-H-1906, 3200-M-1911, 3200-T-1918, 3200-P-1914, 3200-D-1980, 3200-F-1982, 3200-J-1986, 3200-L-1988THE FOLLOWING CARRIERS ARE MACHINED FOR INTERNAL ABS SENSORS:3200-F-1852, 3200-G-1853, 3200-S-19172