GMC 4000 Series Service Manual page 125

Sec. 3C
Page 118
FRONT SPRINGS
EYEBOLT (TORQUE 250-300 FT. LBS.)
FRONT M O U N T IN G -A L L TILT CAB MODELS
3. Inspect spring assembly for broken or
fractured leaves. Number 1 and 2 leaves can be
G M C S E R V I C E M A N U A L
■=r---- FRONT BRACKET
' NUTS
3 5 - 5 5 Ft. Lbs. Torque
( E 4 5 0 0 - S 5 5 0 0 M o de ls)
3 0 - 4 0 Ft. Lbs. Torque
( E 5 5 0 0 -6 5 0 0 , S 6 5 0 0 M o de ls)
SPRING
Figure 1 — Front Spring M ountings
replaced, however if other leaves are broken, re­
place complete spring assem bly. Replace broken
leaves as directed later in this section.
4. Inspect spring for loose or broken rebound
clips. Rebound clips should be tight enough to hold
spring leaves in alignment, but not tight enough to
restrict free movement of leaves.
5. Check for broken, loose, or sprung spring
center bolt. Replace or tighten as necessary.
BUSHING REPLACEMENT
Rubber-Type Eye Bushing (With Spring
Off Vehicle) All Series Except PS-4500
Remove and replace front eye bushing using
bushing remover, and installer tool set J-21058 as
shown in figures 5 and 6.
Series PS-4500 (With Spring on Vehicle)
Removal
1. Raise vehicle to take weight off spring and
remove spring eye nut and bolt.