Chevrolet 10 Series 1970 Service Manual page 190

REAR SUSPENSION AND DRIVE LINE 4-14
cotter pin in end o f ball stud and bend o v e r fla t of
nut.
P osition ball stud in axle housing and position shim
and fra m e bracket to
torque bracket retaining
specification s.
REAR AXLE (CHEVROLET) SINGLE-SPEED
General D e s crip tio n ..............................................................................
2400, 2900, 3300, 3500 and 3600 Lb. Capacity
(S a lis b u ry -T y p e ) A x les ...............................................................
5200 and 7200 Lb. Capacity A xles
11,000, 13,500, 15,000 and 17,000 Lb.
Capacity A xles ..............................................................................
Maintenance and A d ju stm en ts............................................................
L u b r ic a n t...........................................................................................
U - B o lt and Hub Nuts .....................................................................
Rear A x le Noise D ia g n o s is ..............................................................
Com ponent Parts R e p la c e m e n t............................. ............................
2400, 2900, 3300, 3500 and 3600 Lb. Capacity
(S a lis b u ry -T y p e ) A xles ..............................................................
A x le A s s e m b ly ............................................................................
Rem oval ..................................................................................
Installation ..............................................................................
A x le V ent R e p la c e m e n t............................................................
A x le Shaft ..................................................................................
Rem oval ..................................................................................
Oil Seal and/or Bearing R e p la c e m e n t...............................
Brake Flange Plate Replacem ent
Wheel Bolt Replacement
In sta lla tio n ..................................................................................
Pinion Flange, Dust D eflector and/or
Oil Seal Replacement ............................................................
Positraction D ifferential U n i t ...................................................
On The Vehicle C h e c k ............................................................
5200 Through 17,000 Lb. Capacity A x le s ........................................
2 4 0 0 , 2 9 0 0 , 3 3 0 0 , 3 5 0 0 A N D 3 6 0 0 LB.
CAPACITY (SALISBURY-TYPE) AXLES
The 2400, 2900, 3300,
(S alisb u ry-T yp e) axle (fig . 25) is a sem ifloating, fa b ri­
cated constructed type consisting o f a cast c a r r ie r with
la rg e b osses on each end into which two welded steel
tubes are fitted. The c a r r ie r contains an overhung hypoid
pinion and ring gea r. The d iffe re n tia l is a two pinion
arrangem ent.
The axle housing is made up o f two steel welded tubes
p ress ed into the cro s s b o re o f the cast c a r r ie r - - e a c h tube
is puddle welded to the c a r r ie r .
pro vid e attachment points
such as spring seats, shock absorbers and control arm s.
A w elded flange is p rovid ed
attachment.
An overhung hypoid d riv e pinion is supported by two
preloaded tapered r o lle r b earin gs. The pinion shaft is
sealed by means o f a m olded, spring loaded, rubber seal.
T h e seal is mounted on the pinion flange which is splined
and bolted to the hypoid pinion shaft.
crossm em b er. Install and
b o l t s and n u t s
DRIVE LINE
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GENERAL DESCRIPTION
3500 and 3600 lb. capacity
W elded-on brackets
fo r suspension components
fo r brake flange plate
3. Install ball stud nut, torque to sp ecifica tion s, position
cotter pin in end o f ball stud and bend o v e r flat o f
nut.
4. R em ove support from axle housing.
to
NOTE: Recheck the torque on these nuts after
approxim ately 500 m iles of d rivin g.
INDEX
A x le A s s e m b ly ...........................................................................
Rem oval ..................................................................................
Installation .............................................................................
A x le V ent R e p la c e m e n t............................................................
A x le S h a ft-R em o va l and Installation
5200 7200
and
11,000, 13,500
17,000
Lb. A x le s .....................................................................
Hub and D r u m ...........................................................................
Rem oval ..................................................................................
Cleaning ..................................................................................
In s p e c tio n ................................................................................
Bearing Cup R e p la c e m e n t.....................................................
Drum R e p la c e m e n t................................................................
Demountable- T y p e ............................................................
N o n -D em o u n ta b le—T y p e .................................................
Wheel Bolt R e p la c e m e n t.......................................................
Hub Stud R e p la c e m e n t..........................................................
Oil Seal Sleeve and Bearing Thrust Spacer
Replacement
Wheel Hub Oil Seal Replacement
In sta lla tio n ..................................................................................
4-21
4-21
Bearing A d ju s tm e n t..................................................................
Drive Pinion Oil Seal
R e p la c e m e n t...........................................................................
4-21
N o -S p in D ifferential U n i t .......................................................
On the Vehicle C h e c k ............................................................
The hypoid ring gear is bolted to a on e-p iece d iffe re n ­
tial case which is supported by a two preloaded tapered
r o lle r bearings.
5 2 0 0 A N D 7 2 0 0 LB. CAPACITY AXLES
The 5200 and 7200 lb. capacity truck re a r axles (fig. 26)
are o f the full floating type with hypoid ring g ea r and
d riv e pinion. The full floating construction enables easy
rem o va l o f axle shafts without rem ovin g truck load and
without jacking up the axle. The d iffere n tia l c a r r ie r is
heavily ribbed to p rovide r ig id support fo r the d ifferen tia l
a s s e m b ly --d iffe re n tia l caps a re doweled to the c a r r ie r to
assu re p e rfe ct alignment.
The straddle-m ounted d rive pinion is supported at the
fron t by two opposed tapered r o lle r bearin gs. The pinion
r e a r bearing is a r o lle r bearing assem bly consisting o f
an outer race and r o lle r a s s e m b ly --a p re cis io n ground
diam eter on the pinion p ilo t functions as an inner race.
A thrust pad mounted on the end o f an adjustable screw
threaded into the c a r r ie r housing lim its d eflection o f the
rin g g ea r under high torque conditions.
...................................
Lb. A xles .....................................................
15,000
and Lb. A x l e s .................................
.......................................................................
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CHEVROLET TRUCK SERVICE MANUAL
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