International IH Cabover Leaf Springs-Hangers-Acc

Frequently Asked Questions About International IH Cabover Leaf Springs, Hangers & Accessories

What International Cabover models and years are these leaf springs compatible with?

Our leaf springs are designed to fit International Cabover models including the Transtar, Loadstar, and CO series from the 1960s through early 1980s. Common compatible models include the CO-1850, CO-1950, Transtar 4070, 4270, and 4370. Always verify your specific model number and year before ordering, as mounting configurations can vary between production years. If you're unsure about compatibility, contact us with your VIN or model information for verification.

Are these leaf springs heavy-duty enough for commercial use, and what weight ratings do they support?

Yes, our International Cabover leaf springs are manufactured to meet or exceed OEM specifications for commercial trucking applications. Standard leaf springs typically support loads ranging from 12,000 to 20,000 pounds per axle, depending on the specific model. Heavy-duty options are available for severe service applications. Each product listing includes the exact weight rating and number of leaves. For optimal performance and safety, never exceed the manufacturer's specified weight capacity.

What tools and expertise are needed to install these leaf springs and hangers?

Installation requires professional-grade tools including spring compressors, torque wrenches, and proper lifting equipment. Most installations take 3-6 hours per axle for experienced mechanics. Critical steps include safely supporting the vehicle, removing U-bolts, and properly torquing all fasteners to specification. We strongly recommend professional installation unless you have commercial truck suspension experience. Improper installation can result in dangerous handling characteristics and premature component failure.

Do the replacement hangers and shackles come with new bushings and hardware?

Most of our hanger kits include new bushings, but hardware is typically sold separately unless specifically noted in the product description. Shackle kits generally include pins and bushings pre-installed. We recommend replacing all worn bushings during spring replacement to ensure proper suspension geometry and prevent premature wear. Complete hardware kits with grade 8 bolts, U-bolts, and washers are available separately for each application.

How can I tell if my leaf springs need replacement versus just new bushings or U-bolts?

Signs that indicate full spring replacement include visible cracks in the leaves, permanent sagging (truck sits lower than normal), separated or shifted leaves, or excessive rust penetration. If your truck pulls to one side, experiences harsh ride quality, or shows uneven tire wear, inspect the springs carefully. Minor surface rust or worn bushings alone don't require spring replacement. Measure the arch height compared to specifications - a loss of more than 2 inches typically indicates replacement is needed.