
4C2-1
SECTION 4C2
93/4-INCH
r in g g e a r f r o n t
a x l e
CONTENTS
S U B J E C T
P A G E
D escription.................................................................................................................................................................................... 4 C 2 - 1
Disassembly of A x l e .................................................................................................................................................................. 4 C 2 - 2
Inspection..................................................................................................................................................................................4 C 2 - 2
D isassem bly............................................................................................................................................................................. 4 C 2 - 2
Cleaning and In spectio n ........................................................................................................................................................... 4 C 2 - 7
C le a n in g .................................................................................................................................................................................... 4 C 2 - 7
In spection..................................................................................................................................................................................4 C 2 - 7
Assembly of A xle.........................................................................................................................................................................4 C 2 - 8
Differential Case A ssem bly.................................................................................................................................................. 4 C 2 - 8
Determining Total Differential Shim Pack S iz e ............................................................................................................. 4 C 2 - 9
Pinion Depth A d ju s tm e n t.................................................................................................................................................... 4 C 2 - 9
Pinion In s ta lla tio n .................................................................................................................................................................. 4C 2-11
Assembling the Differential Housing to the Axle Housing.........................................................................................4 C 2-13
Checking Backlash.................................................................................................................................................................. 4 C 2 -1 4
Final A ssem bly.........................................................................................................................................................................4 C 2 -1 4
S p e c ific a tio n s ............................................................................................................................................................................. 4 C 2-15
Special T o o ls ............................................................................................................................................................................... 4 C 2 -1 6
DESCRIPTION
The Dana 93/4-inch ring gear front axle uses a conven
tional ring and pinion gear set to transm it the driving force
of the engine to the front wheels. This gear set transfers
this driving force at a 90 degree angle from the propeller
shaft to the drive shafts.
The pinion gear is supported by two tapered roller bear
ings. The pinion depth is set by a shim pack between the
inner pinion bearing cup and the front axle housing. The
pinion bearing preload is set by a shim pack at the front of
the axle housing between the yoke and the pinion gear.
The ring gear is bolted onto the differential case with
left-hand thread bolts.
The differential case is supported in the case by two
tapered roller bearings. The differential and ring gear are
located in relationship to the pinion by using selective
shims between the bearings and the differential case. To
move the ring gear, shims are deleted from one side and
an equal amount are added to the other side. Differential
side bearing preload is set by the axle housing. (The axle
housing is spread to remove the differential from the
housing.) When the spreader is removed, the housing
sets the bearing preload.
Two bearing caps are used to hold the differential into
the front axle housing.
The differential is used to allow the wheels to turn at
different rates of speed while the front axle continues to
transm it the driving force. This prevents tire scuffing when
going around corners and prevents premature wear on
internal axle parts.
The front axle is sealed with a pinion seal, an axle seal,
and RTV sealer between the differential cover and front
axle housing.
All Dana axles are identified by the part num ber located
on the right axle tube next to the m anufacturing date
which is next to the carrier. The carrier cover does not
have a drain plug. Oil is drained by removing the cover.
Summary of Contents for 1989 Light Duty Truck
Page 1: ...vr V Light Duty Truck Unit Repair Manual...
Page 2: ......
Page 11: ...GENERAL INFORMATION OA 5 Figure 8 RV Models...
Page 13: ...GENERAL INFORMATION OA 7 Figure 11 ST Models...
Page 18: ......
Page 44: ......
Page 76: ...1B3 18 R 4 AIR CONDITIONING COMPRESSOR N...
Page 114: ......
Page 162: ......
Page 176: ...4B3 14 91 2 INCH RING GEAR...
Page 192: ...4B5 4 DANA REAR AXLES Figure 4 Spreading the Differential Case Figure 7 Removing the Ring Gear...
Page 218: ......
Page 220: ...4B6 2 12 INCH RING GEAR ROCKWELL F 04734 Figure 1 Rear Axle Components...
Page 229: ...12 INCH RING GEAR ROCKWELL 4B6 11 SPECIAL TOOLS Special Tools...
Page 230: ...4B6 12 12 INCH RING...
Page 240: ...4B7 10 LOCKING DIFFERENTIALS SPECIAL TOOLS Special Tools...
Page 260: ...4C2 6 93 4 INCH RING GEAR FRONT AXLE Figure 16 Removing the Pinion Inner Bearing...
Page 273: ...T TRUCK FRONT AXLE 4C3 3 F 05785 Figure 1 Axle Components...
Page 291: ...K TRUCK FRONT AXLE 4C4 3 Figure 1 Front Axle Com ponents K 15 25 Models...
Page 293: ...K TRUCK FRONT AXLE 4C4 5 Figure 3 Front Axle Com ponents K35 Models...
Page 318: ...C4 30 K TRUCK FBOHT AXLE...
Page 334: ......
Page 361: ...2 5 LITER L4 ENGINE 6A1 5 Figure 3 Cylinder Head Manifolds and Components...
Page 363: ...2 5 LITER L4 ENGINE 6A1 7 F 05715 Figure 5 Block and Components...
Page 395: ...2 8 LITER V 6 6A2 3 Figure 1 Engine Lubrication Diagram...
Page 396: ...6A2 4 2 8 LITER V 6 Figure 2 Engine Lubrication Diagram...
Page 424: ...6A2 32 2 8 LITER V 6...
Page 427: ...I 4 3 LITER V 6 6A3 3 Figure 1 Engine Lubrication Diagram B 07857...
Page 451: ...4 3 LITER V 6 6A3 27 SPECIFICATIONS ENGINE SPECIFICATIONS F 6344...
Page 457: ...4 8 LITER L6 6A4 3 Figure 2 Lubrication Diagram Front View...
Page 460: ...6A4 6 4 8 LITER L6 C 1 107 112 fK 108 3 109 165 129 B 05056 Figure 5 Block and Components...
Page 490: ...Ml...
Page 493: ...V8 ENGINE 6A5 3 Figure 1 Lubrication Diagram 5 0L and 5 7L Engines...
Page 494: ...6A5 4 V8 ENGINE Figure 2 Lubrication Diagram 5 0L and 5 7L Engines...
Page 530: ...6A5 40 V8 ENGINE Figure 81 Exhaust Manifold 7 4L Engines Figure 82 Water Pumps and Components...
Page 571: ...6 2 LITER DIESEL 6A7 35 Figure 58 Vacuum Pump Installed...
Page 576: ......
Page 582: ...6C1 6 MODEL 1MEF CARBURETOR Figure 9 Monojet Model 1MEF...
Page 604: ...6C2 6 MODEL M4MEF CARBURETOR Figure 9 Model M4MEF...
Page 640: ...6C4 8 MODEL 700 THROTTLE BODY...
Page 652: ...nmm...
Page 672: ......
Page 693: ...DISTRIBUTORS 6D5 13 Figure 27 Testing the Pickup Coil Figure 28 Testing the Ignition Coil...
Page 696: ......
Page 698: ...7A1 2 700 R4 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts J H 0 0 5 3 7 0 0 R 4 R 2...
Page 745: ...700 R4 AUTOMATIC TRANSMISSION 7A1 49...
Page 762: ...7A2 2 400 475 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts H H 0021 400 R 3...
Page 773: ...400 475 AUTOMATIC TRANSMISSION 7A2 13 Figure 29 Internal Parts H H 0 0 4 3 4 0 0 R 2...
Page 797: ...400 475 AUTOMATIC TRANSMISSION 7A2 37 Figure 93 Control Valve Assem bly...
Page 803: ...400 475 AUTOMATIC TRANSMISSION 7A2 43 Figure 104 Bushing Replacement Procedure...
Page 808: ...J c I i sal...
Page 838: ......
Page 840: ......
Page 842: ......
Page 850: ...7B1 12 HM 290 MANUAL TRANSMISSION J i t i a x V L...
Page 856: ...7B1 18 HM 290 MANUAL TRANSMISSION...
Page 892: ...7B1 54 HM 290 MANUAL TRANSMISSION Figure 93 Special Tools...
Page 897: ...HM 117 TRANSMISSION 7B2 5...
Page 901: ...HM 117 TRANSMISSION 7B2 9 B 05180 Figure 17 Installing the 1st and 2nd Synchronizer...
Page 912: ...20 HM...
Page 924: ...7B3 12 NEW PROCESS TRANSMISSION SPECIAL TOOLS...
Page 927: ...BORG WARNER TRANSMISSIONS 7B4 3 Figure 2 77 mm Transmission and Components...
Page 940: ...i ii iii m i in m i...
Page 944: ...7D1 4 TRANSFER CASE FO 5688 Figure 3 NP205 Transfer Case...
Page 952: ...7D1 12 TRANSFER CASE...
Page 963: ...NEW PROCESS 241 TRANSFER CASE 7D2 11 Figure 17 Oil Pump Pickup Screen Doweled Case Holes...
Page 964: ...7D2 12 NEW PROCESS 241 TRANSFER CASE Figure 18 NP 241 Transfer Case Cut Away...
Page 978: ......
Page 981: ...BORG WARNER 1370 TRANSFER CASE 7D4 3 J...
Page 992: ...7D4 14 BORG WARNER 1370 TRANSFER CASE Figure 26 Installing the Rear Output Yoke...
Page 993: ...BORG WARNER 1370 TRANSFER CASE 7D4 15 Figure 27 BW 1370 Transfer Case...
Page 997: ......
Page 998: ...X 8937...