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4B4-8 101/2-INCH RING GEAR
T ig h te n
• T h e ring g e a r bolts in se q u e n c e to 163 N-m
(120
ft. lbs.).
7. Differential side bearing s (18) using J 2 4 4 2 9 and
J 8 0 9 2 (figure 17).
• P lace J 8107 into the differential on th e side
opposite of b earing installation to protect the
differential case.
• Drive th e b earing onto the case using J 2 4 4 2 9
and J 80 9 2 .
Differential case (34) to the axle housing. R e fer to
“ S ide B earing P reload A d ju s tm e n t” in this section.
8
.
SIDE BEARING PRELOAD ADJUSTMENT
• T h e differential side b earing preload is adjusted by
two adjusting nuts in the differential bearing bore.
T h e bore and th e b earing cap provide the m ating
th reads for th e bearing nut.
• T h e differential must be initially p relo ad ed in order
to d eterm ine th e b acklash of the g ear set. After the
backlash has b een set, the final bearing preload is
set.
|-»<-| Install o r C on n e ct (F igure 18)
Tool R equired:
J 2 4 4 2 9 S id e B e a rin g B a c k la s h S p a n n e r
W rench
1. T h e bearing cups (20) to the differential bearing s in
their original locations.
2. Differential asse m b ly to th e axle housing.
3. Adjusting nuts (19).
4. B earing caps (20 ) and bolts (28) in their original
positions.
• A ssem b ly the caps loosely.
• Loosen the right side adjusting nut, and tighten the
left side nut using J 2 4 4 2 9 until th e ring g e a r
contacts the drive pinion. Do not force the gears into
contact. This is th e zero lash point.
• Back off the left adjusting nut ap p ro xim ately two
slots to obtain the initial backlash ad justm ent.
5. Adjusting nut lock (21) and lock bolt (22) to the left
nut.
6
.
• Do not tighten.
T ig h ten the right adjusting nut firm ly to force the
case into solid contact with the left adjusting nut.
R otate th e pinion several tim es to se at th e bearings.
Loosen th e right adjusting nut until it is free from its
bearing .
T ig h ten the right adjusting nut until it just contacts
th e b earing . Additionally tighten th e nut two slots for
used b earings, or th ree slots if new bearing s are
installed.
Adjusting nut lock (21) and lock bolt (22) to the left
nut.
• Do not tighten.
• T h e b earing cap bolts (28) to 183 N-m (135 ft.
lbs.).
• M e a s u re the ring g ear to pinion b acklash . R e fer to
“ Backlash A d ju s tm e n t” in this section.
BACKLASH ADJUSTMENT
1. Install a dial indicator to th e ca se using a m agn etic
b ase (figure 19).
2. P lace th e indicator stem at th e heel end of a tooth.
• S et th e dial indicator so th at th e stem is in line
with th e g ear rotation and p e rp e n d ic u la r to the
tooth angle.
3. C h ec k and record the b acklash at th ree or four
points around the ring gear.
• T h e pinion m ust be held s ta tio n a ry w hen
ch eckin g backlash.
• T h e backlash should be the sa m e at each
p o in t w ith in 0 .0 5 m m (0 .0 0 2 -in c h ). If th e
b acklash varies m ore than 0.05 (0.002-in ch ),
c h e c k for b urrs, a d is to rte d c a s e fla n g e ,
uneven bolting conditions, or foreign m atter
b etw een the case and the ring gear.
4. T h e backlash at the m inim um lash point m easured
s h o u ld
b e
b e t w e e n
0 . 1 2 5 - 0 . 2 0 0
m m
( 0 .0 0 5 - 0 .0 0 8 - in c h ) . T h e m a x im u m a c c e p t a b le
reading is 0 .0 76-0 .2 03 mm (0.003-0.008-in ch ).
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...