Freightliner: new medium bias air springs (18-52651-000) superseded low bias air springs (18-40977-000) in...
Freightliner technical service bulletin SB-60-142 for 2010 Freightliner Cascadia, 2010 Freightliner Columbia and 2010 Freightliner Business Class M2 and others.
- Bulletin number
- SB-60-142
- Component
- Suspension: front: springs: air suspension system
- Summary
- Freightliner: new medium bias air springs (18-52651-000) superseded low bias air springs (18-40977-000) in production on 12/15/ 08/ of replacing one air spring, do not match a low bias sir spring with a medium bias one. The two types of air springs have different spring rates, and will have a slightly different ride height at the same air pressure. If a matching low bias air spring is not available, replace both with medium bias air springs. No model years listed.
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