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 1999

Conditions

Action

Loose crossmember attaching bolts.

Replace or weld and reinforce the rail. Ream the bolt holes. Replace with larger bolts if necessary. Retighten the bolts.

Concentration of stress that may result from many different factors.

Refer to Minimizing Frame Service Description Minimizing Frame Damage and Reinforcements.

Replace or weld and reinforce the rail.