GM Service Manual Online
For 1990-2009 cars only

Frame Conditions - Cracks in Web of Rails for Chevrolet Chevrolet C-Series Medium Duty Truck B7 1998

Problem

Action

Loose crossmember attaching bolts.

  1. Replace, or weld and reinforce the rail.
  2. Ream the bolt holes and install larger bolts if necessary.
  3. Tighten the bolts. Refer to Fastener Tightening Specifications .

Stress concentration. Refer to Minimizing Frame Service Description .