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Home >> GMC Truck >> 1997 >> G 2500 3/4 Ton Van V8-5.7L VIN R >> Repair and Diagnosis >> Steering and Suspension >> Steering >> Steering Column >> Service and Repair >> - With Tilt Column >> Lower Steering Shaft Assembly

Lower Steering Shaft Assembly









^ Tools Required:
- J 21854-01 Pivot Pin Remover
- J 41352 Modular Column Holding Fixture
- Or Equivalents

Remove or Disconnect

NOTICE: Once steering column is removed from vehicle, the column is extremely susceptible to damage. Always use the correct fastener In the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you Install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

1. Steering column guide assemblies (53) and (54) from steering column jacket assembly (58).
2. Do steps 1 through 8, "Remove or Disconnect", LOWER SHROUD, UPPER SHROUD.
3. Two pan head tapping screws (13).
4. Turn signal & multi-function switch assembly (24).
5. Linear shift assembly (40).
- Do steps 2 through 6 Remove or Disconnect, LINEAR SHIFT ASSEMBLY (REMOVAL). (column shift only)
6. Refer to CAUTION and do steps 5 and 6, "Remove or Disconnect", TILT SPRING.
5. Inner boot seal (66) from adapter & bearing assembly (62). Slide boot seal down coupling & steering shaft assembly (65).
6. Coupling & steering shaft assembly (65) from shaft assembly (32).
- Remove pinch bolt





NOTICE: Do not attempt to pry off the coupling & steering shaft assembly, as this will damage the EVO sensor. Use screwdriver to pry apart ears of coupling & steering shaft assembly (65), and then remove shaft.

7. EVO sensor assembly (64) from adapter & bearing assembly (62).
8. Adapter & bearing assembly (60) from jacket assembly (58).
9. Two pivot pins (56) using J 21854-01.
10. Steering column tilt head assembly (26) with steering shaft assembly.
- Install and pull tilt arm to disengage steering wheel lock shoes from dowel pins in steering column support assembly (57).








Important: Mark race & upper shaft assembly (34) and lower steering shaft assembly (37) to ensure proper assembly. Failure to assemble properly will cause steering wheel to be turned 180 degrees.

Disassemble
- Lower steering shaft assembly (37) from race & upper shaft assembly (34) and steering column tilt head assembly (26).
a. Race & upper shaft assembly (34) from lower steering shaft assembly (37).
- Tilt 90 degrees to each other and disengage.
b. Centering sphere (35) from upper shaft assembly (34).
- Rotate sphere 90 degrees and slip out.
c. Shaft preload spring (36) from centering sphere (35).





Assemble
- Lower steering shaft assembly (37) to race & upper shaft assembly (34) and steering column tilt head assembly (26).
a. Shaft preload spring (36) to centering sphere (35).
b. Centering sphere (35).
- Lubricate with lithium grease. Slip into upper shaft assembly (34) and rotate sphere 90 degrees.
c. Lower steering shaft assembly (37) to race & upper shaft assembly (34).
- Line up marks and tilt assemblies 90 degrees to each other.

10. Four torx head screws (55).
11. Steering column support assembly (57).

Install or Connect

NOTICE: Always use the correct fastener In the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you Install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

1. Steering column support assembly (57).
2. Four torx head screws (55).
- Tighten screws (55) to 9 Nm (80 lb in).
3. Do steps 1 through 4, 6, and 7, "Install or Connect", STEERING COLUMN TILT HEAD ASSEMBLY.
4. Adapter & bearing assembly(60)to steering column jacket assembly (58).
- Position tab on adapter & bearing assembly (60) with slot in steering column jacket assembly (58) and push together.
5. EVO sensor assembly (64) to adapter & bearing assembly (62)
6. Coupling & steering shaft assembly (65) to shaft assembly (32).
- Tighten pinch bolt (67) to 47 Nm (35 lb ft).
7. Inner boot seal (66) to adapter & bearing assembly (62).
8. Turn signal & multifunction switch assembly (24) to column.
- With small blade screwdriver compress electrical contact and move multi-function switch (24) into position.
- Electrical contact must rest on cancelling cam assembly (6).
9. Two pan head tapping screws (13).
- Tighten screws (13) to 6 Nm (53 lb in).
10. Do steps 4 throughl3, "Install or Connect", LOWER SHROUD, UPPER SHROUD.
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