GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications Commercial

Application

Specification

Metric

English

Connecting Rod To Adjuster Tube Bolts

68 N·m

50 lb ft

Idler Arm Frame Support To Frame

40 N·m

30 lb ft

Idler Arm To Relay Rod

90 N·m

66 lb ft

Pitman Arm To Relay Rod

90 N·m

66 lb ft

Pitman Arm To Steering Gear

250 N·m

184 lb ft

Tie Rod Adjuster Tube Bolts

19 N·m

14 lb ft

Tie Rod To Relay Rod

90 N·m

66 lb ft

Tie Rod To Steering Knuckle*

62 N·m

46 lb ft

*Tightening Procedure (Castellated Nuts)

  1. Tighten the nuts to the specified torque.
  2. Advance the nut in order to align the nut slot with the cotter pin hole. Do not back off the nut in order to align the cotter pin hole.
  3. Insert a new cotter pin of the correct size.

Fastener Tightening Specifications Motorhome

Application

Specification

Metric

English

Connector Rod to Pitman Arm*

95 N·m

70 lb ft

Connecting Rod to Relay Arm*

95 N·m

70 lb ft

Idler Arm Adjuster Plug Jam Nut

40 N·m

30 lb ft

Idler Arm And Relay Arm To Support Assemblies

170 N·m

125 lb ft

Idler Arm To Relay Rod

90 N·m

66 lb ft

Pitman Arm To Relay Rod

159 N·m

117 lb ft

Pitman Arm To Steering Gear

170 N·m

125 lb ft

Pitman Arm (Clamp-Type) To Steering Gear (JF9)

135 N·m

100 lb ft

Relay Rod To Relay Arm

159 N·m

117 lb ft

Shock Absorber To Frame

11 N·m

8 lb ft

Shock Absorber To Idler Arm*

62 N·m

46 lb ft

Support Assemblies To Frame

65 N·m

48 lb ft

Tie Rod Adjuster Tube Bolts

19 N·m

14 lb ft

Tie Rod To Relay Rod

90 N·m

66 lb ft

Tie Rod To Steering Knuckle*

62 N·m

46 lb ft

*Tightening Procedure (Castellated Nuts)

  1. Tighten the nuts to the specified torque.
  2. Advance the nut in order to align the nut slot with the cotter pin hole. Do not back off the nut in order to align the cotter pin hole.
  3. Insert a new cotter pin of the correct size.

Fastener Tightening Specifications Commercial (I-Beam Front Axle)

Application

Specification

Metric

English

Connecting Rod Adjuster Tube Bolts

68 N·m

50 lb ft

Connecting Rod To Pitman Arm*

159 N·m

117 lb ft

Connecting Rod To Steering Knuckle*

159 N·m

117 lb ft

Pitman Arm To Relay Rod

159 N·m

117 lb ft

Pitman Arm to Steering Gear

255 N·m

188 lb ft

Relay Rod To Relay Arm

159 N·m

117 lb ft

Shock Absorber To Frame

47 N·m

35 lb ft

Shock Absorber To Tie Rod*

62 N·m

46 lb ft

Tie Rod Outer Jam and Inner Nuts

375 N·m

277 lb ft

Tie Rod To Steering Knuckle*

220 N·m

162 lb ft

*Tightening Procedure (Castellated Nuts)

  1. Tighten the nuts to the specified torque.
  2. Advance the nut in order to align the nut slot with the cotter pin hole. Do not back off the nut in order to align the cotter pin hole.
  3. Insert a new cotter pin of the correct size.