Freightliner M2 Business Leaf Springs-Hangers-Acc

Frequently Asked Questions About Freightliner M2 Business Leaf Springs, Hangers & Accessories

What model years are these leaf springs compatible with for the Freightliner M2?

Our leaf springs are designed to fit Freightliner M2 Business Class trucks from 2003 to present. However, compatibility can vary based on your specific truck configuration, including wheelbase, GVWR, and suspension type. We recommend checking your VIN or calling our team at 1-888-875-7787 with your truck's specifications to ensure proper fitment. Key differences exist between pre-2014 and post-2014 models due to suspension design changes.

Are these leaf springs OEM quality or aftermarket replacements?

We carry both genuine OEM Freightliner parts and high-quality aftermarket alternatives. Our aftermarket leaf springs are manufactured to meet or exceed OEM specifications, using shot-peened steel for durability and proper arch dimensions. Many are made by trusted suppliers like Dayton Parts and Hendrickson. The main differences are price (aftermarket typically costs 30-40% less) and availability (aftermarket often ships faster). All our leaf springs come with detailed specifications including capacity ratings and dimensions.

What tools and equipment do I need to replace leaf springs on my M2?

Replacing leaf springs requires proper equipment for safety. You'll need: heavy-duty jack stands rated for commercial trucks, a floor jack capable of lifting at least 10 tons, spring compressors, impact wrenches, torque wrenches capable of 450+ ft-lbs, and basic hand tools. Critical safety equipment includes spring clamps to prevent sudden decompression. Installation typically takes 4-6 hours per side for experienced mechanics. We strongly recommend professional installation if you lack commercial truck experience, as improper installation can cause dangerous handling issues.

How do I know when my leaf springs need replacement versus just new bushings or hangers?

Check for these signs: visible cracks or breaks in any leaf, permanent sagging causing uneven ride height side-to-side (more than 1 inch difference), separated or shifted leaves, worn-through clamps, or excessive rust penetration. Often, worn bushings or damaged hangers cause symptoms similar to bad springs. Squeaking typically indicates bushing wear, while clunking suggests loose U-bolts or broken leaves. We offer complete inspection kits and individual components so you can replace only what's needed.

What's the weight capacity difference between standard and heavy-duty leaf spring options?

Standard M2 front leaf springs typically support 12,000-14,000 lbs, while heavy-duty options can handle 16,000-20,000 lbs. Rear springs range from 21,000 lbs for standard applications up to 46,000 lbs for severe-duty tandem setups. Your door jamb sticker shows your truck's GAWR (Gross Axle Weight Rating) which determines the minimum capacity needed. Upgrading to higher capacity springs can improve loaded handling but may create a stiffer unloaded ride. We can help match the right spring pack to your typical load requirements.