GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Body and Accessories 🢒 Frame and Underbody 🢒 Frame Conditions - Cracks in Web of Rails

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 .