Buick LeSabre 1965 Service Manual page 385

REAR AXLE, 4 6 , 4 8 , 4 9 0 0 0 SERIES
6-19
6-10
6-11
6-12
6-13
6-14
6-15
SECTION 6-B
REAR AXLE, 4 6 , 4 8 , 49000 SERIES
CONTENTS OF SECTION 6-B
Subject Page Paragraph
Rear Axle Specifications 6-19 6-16
Description of Rear Axle 6-20
Rear Axle Trouble Diagnosis . . . . 6-22 6-17
Removal and Installation of 6-18
Rear Axle Assembly 6-24
Removal and Installation of Axle 6-19
Shaft, Wheel Bearing or Oil Seal . . 6-25
Removal and Installation of 6-20
Carrier Assembly 6-26
Subject Page
Disassembly of Carrier
Assembly 6-28
Assembly of Carrier Assembly . . . 6-30
Description of Positive Traction
Differential 6-36
Lubrication of Positive Traction
Differential 6-36
Positive Traction Differential
Service Procedures 6-38
6 - 1 0 REAR AXLE SPECIFICATIONS
a. Tightening Specifications
Use a reliable torque wrench to tighten the parts listed, to insure proper tightening without straining or dia-
torting parts. These specifications are for clean and lightly lubricated threads only; dry or dirty threads
produce increased friction which prevents accurate measurement of tightness.
Part Location
Bolt Center Bearing Support to Frame 45, 46, 48000. . . .
Bolt Center Bearing Support to Frame 49000
Nut Clamp, Rear U-Joint to Pinion Flange, 46, 48000 . .
Bolt Rear CV Joint to Pinion Flange, 49000
Nut Differential Carrier to Housing
Nut Spring, Upper End to Frame 49000
Bolt & Nut Upper Control Arm, Inner to Outer Arm 49000 . . . .
Bolt & Nut Upper & Lower Control Arm Pivot, All, 49000 . . . .
Bolt & Nut Upper & Lower Control Arm Pivot, All, 46, 48000 . .
Bolt & Nut Upper Control Arm Bracket to Frame, 46, 48000 . . .
Nut Rear Shock, Upper & Lower Ends, 49000
Bolt & Nut Rear Shock, Upper End, 46, 48000
Nut Rear Shock, Lower End, 46, 48000
Bolt Ring Gear to Case
Nut Wheel Bearing Retainer & Brake Assembly to Housing
Bolt & Nut Differential Bearing Support Clamping
Nut Spring, Lower End to Lower Control Arm, 49000 . .
Nut Wheel & Brake Drum to Rear Axle Shaft
Bolt & Nut Track Bar to Axle or Frame Bracket, 49000
Nut Pinion Bearing Lock, 46, 48000
Thread
Size
5/16-18
5/16-24
5/16-18
7/16-14
3/8 -16
1/2 -13
7/16-14
1/2 -13
1/2 -13
3/8 -16
1/2 -13
5/16-18
1/2 -20
7/16-20
3/8 -16
1/2 -20
1/2 -13
1/2 -20
5/8 -18
7/8 -14
Torque
Ft.-Lbs.
17-23
15-25
12-15
75-95
40-50
15-20
40-55
60-95
60-95
25-35
35-45
15-20
30-60
65-75
40-55
40-50
20-30
65-85
100-140
200-300
b. General Specifications
All Series
Item (Except as otherwise noted)
Rear Axle Type Semi-Floating Hypoid
Drive and Torque Through 3 Control Arms - 49000
Drive and Torque Through 4 Control Arms - 46, 48000
Rear Axle Oil Capacity 4 1/2 Pints
Ring and Piston Gear Set Type Hypoid
Bolted Ring Gear 12 Bolts—7/16 Alloy
Pinion Position Adjustment Shims
Pinion Bearing Preload Adjustment Spacers
Ring Gear Position and Preload Adjustment Shims