Front Suspension - Chevrolet CHEVY VAN G10 SERIES Service Manual

General D e s c rip tio n ....................................................................... 3-1
M aintenance and A d ju s tm e n ts ....................................................3-2
Wheel Bearing— C heck A djustm ent .....................................3-2
F ro n t A lignm ent D e sc rip tio n ................................................. 3-2
Alignm ent Prelim inary S t e p s ................................................. 3-2
Caster and Camber ............................................................. 3-3
How to D eterm ine C a s t e r ................................................. 3-3
T o e - I n ......................................................................................3-5
D efinitions ............................................................................ 3-5
C om ponent Parts Replacem ent ................................................. 3-5
Wheel Hubs & Bearings ...........................................................3-5
R e m o v a l.................................................................................3-5
I n s p e c tio n ...............................................................................3-5
R e p a i r s ................................................................................... 3-5
Bearing Cups—R e p la c e ................................................. 3-5
Wheel Stud R e p la c e m e n t............................................ 3-5
I n s ta lla tio n ............................................................................ 3-5
Shock A b s o r b e r s ....................................................................... 3-6
Removal .................................................................................3-6
I n s ta lla tio n ............................................................................ 3-6
Coil Spring Suspension Assembly ....................................... 3-6
S ta b iliz e r.................................................................................3-6
R e m o v a l............................................................................ 3-6
Inspection ....................................................................... 3-6
In s ta lla tio n ....................................................................... 3-6
The Chevrolet Chevy Van and Sportvan line incorporates an
independent coil fro n t suspension system. (Fig. 1).
The unequal length control arm coil spring independent
suspension is used on all 10, 20 and 30 series Vans. This
suspension system consists o f upper and lower control arms
pivoting on steel threaded bushings on upper and lower
control arm shafts w hich are attach ed to the crossm ember
w ith U-bolts. These control arms are connected to the steering
knuckle through pivoting ball joints. A coil spring is located
betw een the lower control arm and a form ed seat in the
suspension crossm em ber, thus th e lower control arm is the
load carrying m em ber. The double acting shock absorbers are
also attach ed to th e lower control arms and connect w ith the
frame to the rear on the upper end. The front wheel bearings
are tapered roller ty p e on th e above models.
A
SECTION 3

FRONT SUSPENSION

INDEX
Page
GENERAL DESCRIPTION
Springs ................................................................................... 3-6
R e m o v a l............................................................................3-6
In s ta lla tio n ....................................................................... 3-7
Lower C ontrol Arm Assembly ....................................... 3-7
R e m o v a l............................................................................3-7
R e p a irs .............................................................................. 3-7
In s ta lla tio n .......................................................................3-7
U pper C ontrol Arm A ssem b ly ..........................................3-7
R e m o v a l............................................................................3-7
R e p a irs .............................................................................. 3-7
I n s ta lla tio n ....................................................................... 3-8
Upper and Lower C ontrol Arm Inner Pivot
Shaft R e p la c e m e n t........................................................ 3-8
Ball Jo in t In s p e c tio n ...........................................................3-9
Steering K nuckle/Steering A r m ..........................................3-10
Removal .............................................................................. 3-10
I n s ta lla tio n ......................................................................... 3-11
Crossm em ber and Suspension U nit .................................. 3-11
R e m o v a l.............................................................................. 3-11
I n s ta lla tio n ..........................................................................3-11
Special Tools ................................................................................. 3-12
CONTROL
ARMS
Fig. 1 —Fron t Suspension
Page
SHOCK
C H E V Y V A N SH O P M A N U A L