GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications Haulmaxx Suspension

Application

Specification

Metric

English

Frame Fasteners Furnished and Installed by Truck Manufacturer鹿

Auxiliary Spring Bracket to Saddle (Locknut)

129 N路m

95 lb ft

Auxiliary Spring Plate to Beam Assembly (Locknut)

129 N路m

95 lb ft

Auxiliary Spring Shim to Auxiliary Spring Contact Plate (Locknut)

129 N路m

95 lb ft

Bar Pin Attachment to Axle (Bolt Head)

780 N路m

575 lb ft

Bar Pin Attachment to Axle (Locknut)

712 N路m

525 lb ft

Bolster Spring to Beam Assembly (Locknut)

129 N路m

95 lb ft

Bolster Spring to Saddle (Locknut)

129 N路m

95 lb ft

Inboard Frame Bracket to Outboard Frame Bracket and Crossmember (Locknut)

257 N路m

190 lb ft

Inboard Saddle Bolts

70 N路m

95 lb ft

Rebound Clip to Saddle (Locknut)

129 N路m

95 lb ft

Rebound Strap to Auxiliary Spring Contact Plate (Locknut)

68 N路m

50 lb ft

Saddle to Outboard Frame Bracket (Locknut)

420 N路m

310 lb ft

Shock Absorber to Beam (Locknut)

108 N路m

80 lb ft

Shock Absorber to Frame Bracket (Locknut)

217 N路m

160 lb ft

Transverse Torque Rod to Axle (Locknut)

271 N路m

200 lb ft

Transverse Torque Rod to Frame

257 N路m

190 lb ft

Note:鹿 Torque values listed above apply only if Hendrickson庐 supplied fasteners are used. If non-Hendrickson庐 fasteners are used, follow the suppliers specifications.

Fastener Tightening Specifications Except Haulmaxx Suspension

Application

Specification

Metric

English

Auxiliary Spring Jam Nut

70 N路m

52 lb ft

Single Axle Suspension

  • Bumper Nut

50 N路m

37 lb ft

  • Shock Absorber Lower Nut

85 N路m

63 lb ft

  • Shock Absorber Upper Nut

85 N路m

63 lb ft

  • Spring Eye Bolt Front Nut - 4500, 5500

415 N路m

305 lb ft

  • Spring Eye Bolt Front Nut - 6500, 7500 and 8500

485 N路m

358 lb ft

  • Spring Hanger Nut

85 N路m

63 lb ft

  • Spring Hanger Rebound Bolt, Taperleaf Spring

415 N路m

305 lb ft

  • Stabilizer Bracket Nut

85 N路m

63 lb ft

  • Stabilizer Clamp Nut - 4500 and 5500

50 N路m

37 lb ft

  • Stabilizer Clamp Nut - 6500, 7500 and 8500

220 N路m

162 lb ft

  • Stabilizer Shaft Nut

240 N路m

177 lb ft

  • Stabilizer Link Nut - 4500 and 5500

100 N路m

74 lb ft

  • Stabilizer Link Nut - 6500, 7500 and 8500

240 N路m

177 lb ft

  • 20 mm (0.787 in) U-Bolt Anchor Plate Nut Final Torque - 4500 and 5500

300 N路m

220 lb ft

  • 20 mm (0.787 in) U-Bolt Anchor Plate Nut Final Torque - 6500, 7500 and 8500

330 N路m

243 lb ft

  • 22 mm (0.866 in) U-Bolt Anchor Plate Nut Final Torque

415 N路m

308 lb ft

Tandem Axle Suspension

  • Equalizing Beam Bolt Nut

700 N路m

516 lb ft

  • Eye Pin Clamp Bolt Nut

85 N路m

63 lb ft

  • Rebound Nut

75 N路m

55 lb ft

  • Saddle Cap Nut

340 N路m

250 lb ft

  • Saddle Cap Stud

81 N路m

60 lb ft

  • Spring Bracket Nut - Front

200 N路m

149 lb ft

  • Spring Bracket Nut - Rear

175 N路m

130 lb ft

  • Spring Hanger Nut

85 N路m

63 lb ft

  • Torque Rod Bracket to Cross Member Bolt Nut

85 N路m

63 lb ft

  • Torque Rod to Axle Bracket Bolt Nut

175 N路m

130 lb ft

  • U-Bolt Nut Final Torque

330 N路m

243 lb ft