Frequently Asked Questions About Kenworth T800 Steer Axle Springs & Hangers

What are the weight capacity ratings for T800 steer axle springs, and how do I choose the right one for my truck?

Kenworth T800 steer axle springs typically come in weight ratings from 12,000 to 20,000 pounds per axle. To select the correct capacity, check your door jamb sticker for the GAWR (Gross Axle Weight Rating) or consult your truck's specification sheet. Heavy-haul applications generally require 18,000-20,000 lb springs, while standard highway trucks often use 12,000-14,000 lb ratings. Always match or slightly exceed your actual front axle weight for optimal performance and safety.

Will these springs and hangers fit my specific year T800, and are there differences between model years?

Most T800 steer axle springs and hangers are compatible across model years from 1987 to 2007, but there are important variations. Pre-1994 models may have different hanger mounting hole patterns. Hood-mounted T800s (T800B) sometimes require different spring eye dimensions than standard models. Always verify your existing spring part number or measure the spring eye diameter, center-to-center length, and arch height before ordering to ensure proper fitment.

Can I install these springs and hangers myself, or do I need special tools and equipment?

While experienced mechanics can install steer axle springs, this job requires heavy-duty spring compressors, proper jack stands rated for commercial trucks, and impact tools capable of handling high-torque fasteners. The process involves safely supporting the front axle weight while removing tension from the springs. Most customers find it safer and more cost-effective to have a qualified heavy-truck shop perform the installation, which typically takes 2-4 hours per side.

How can I tell if my springs are OEM-style taper leaf or multi-leaf, and does it matter for replacement?

Check your existing springs by counting the leaves - taper leaf springs have 2-3 leaves that gradually thin toward the ends, while multi-leaf springs have 4-8 leaves of uniform thickness. This distinction is crucial because they have different load characteristics and ride qualities. Taper leaf springs generally provide a smoother ride but are more expensive. You can switch types, but it may affect your truck's ride height and handling characteristics.

What are the signs that my spring hangers need replacement along with the springs?

Inspect hangers for cracks around bolt holes, excessive rust that has thinned the metal, elongated or worn bushings, and any bending or distortion. Even if springs are the primary concern, worn hangers can cause premature spring failure and alignment issues. When replacing springs on high-mileage trucks (over 500,000 miles), it's recommended to replace hangers and bushings simultaneously to ensure proper alignment and prevent comeback issues.