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ATS Springs offers Grade 8 Mack Square U-Bolt Kits engineered specifically for Mack Camelback rear suspension applications. These U-bolts are designed to securely clamp the axle to the suspension assembly while handling the extreme loads common in vocational and heavy-duty Mack trucks.
Square bend U-bolts are required in Mack Camelback setups to properly seat against axle and trunnion components, ensuring correct alignment and load distribution.
Grade 8 Strength for Heavy-Duty Mack Applications
All Mack square U-bolt kits from ATS are manufactured using Grade 8 hardware, providing:
- Higher tensile strength than lower-grade bolts
- Improved torque retention under constant load
- Increased resistance to stretching and fatigue
Because U-bolts stretch when torqued, reusing old U-bolts is not recommended. New U-bolts are the foundation of a safe and reliable suspension install.
Designed for Mack Camelback Suspensions
These square U-bolt kits are commonly used with:
- Mack Camelback rear suspension systems
- Trunnion seats and saddle assemblies
- Heavy vocational and on-road Mack trucks
Each kit is built to meet OEM-style fitment requirements while offering the durability expected from ATS Springs.
Mack Trunnion Seats – OEM Quality Without Dealer Pricing
ATS also offers Mack Trunnion Seats at significantly lower cost than Mack dealers, without sacrificing quality or durability.
Key Features:
- One-piece steel construction
- Pressed and reamed bronze bushings
- Integrated grease zerk for front-position greasing
- Built for long service life in Camelback suspensions
ATS trunnion seats are designed to match the same performance and durability standards as OEM Mack components.
Internal Hardware Kits Available
To complete your suspension service, ATS offers Mack internal hardware kits:
- Available with or without bushings
- Ideal for full trunnion seat replacement or rebuilds
- Eliminates the need to source individual components
Why Choose ATS Springs for Mack Suspension Parts?
- OEM-spec components at competitive pricing
- Grade 8 hardware standard
- In-stock parts ready to ship
- Heavy-duty suspension specialists
If you don’t see the Mack suspension part you need, Contact Us and “Just Ask Bob” with your application details, and we’ll help you find the correct solution.