Running Gear

Axles • Brakes • Hubs • Suspension

Running Gear

The working hardware under the trailer. Shop brake assemblies, hubs and drums, U-bolts, spring hardware, shackles, and the service parts that keep a trailer rolling straight and stopping correctly.

Brake assemblies
Hub & drum service
Axle mounting hardware
Leaf-spring suspension

Parts Counter

Know what you need?

Search by part number, bearing number, brake size, axle rating, or component name.

Call 815-357-3292 Text Parts Counter

Shop by Component

Start with the part you are servicing, then verify measurements before ordering.

Trailer Brakes

Complete electric brake assemblies, backing plates, and brake-side service components.

Shop brakes →

Hubs & Drums

Hub assemblies, drums, bearings, seals, and conversion-related rolling hardware.

Shop hubs →

U-Bolts & Tie Plates

Axle-to-spring mounting kits, clamping hardware, and spring plates.

Shop mounting hardware →

Suspension Hardware

Shackles, spring hardware, equalizer parts, bolts, and suspension wear components.

Shop suspension →

Measure Before You Order

Running gear is dimension-sensitive. A close match is not necessarily a usable match.

Verify These First

Brakes Diameter, width, flange pattern, left/right side

Hubs Inner bearing, outer bearing, seal, bolt pattern

U-Bolts Axle tube diameter, width, length, thread

Suspension Spring width, bolt diameter, shackle spacing

What We Check at the Parts Counter

Bearing numbers before recommending a hub or drum.
Brake dimensions before matching backing plates.
Axle tube dimensions before selecting U-bolts.
Wheel bolt pattern before confirming hub fitment.
Spring width and hardware dimensions for suspension work.
Whether the repair needs one component or a complete assembly.

Not sure what is under your trailer?

Send measurements, bearing numbers, axle tags, or clear photos of the parts you are replacing.

Call the Parts Counter Text 815-357-3292

Fitment must be verified before installation. Older axles, rebuilt assemblies, mobile-home conversions, and previously modified trailers may not match catalog assumptions based on axle capacity alone.