Product Description
L/w assy, d/s bearing
Specifications: 3.250 inch diameter x 6.500 inch width (3.250" x 6.500" | 3.25 x 6.5 wheel | 3-1/4 x 6-1/2 | 82.55mm x 165.10mm)
Specifications
Wheel Dimensions
| Material | Cushothane XL |
| Outside Diameter | 3.25 |
| Inside Diameter | 1.938 |
| Width Side to Side | 6.5 |
| Tread Profile | 1/4 Radius |
| Bore Depth | 1.799 |
| Bore Outside Diameter | 2.0467 |
Frequently Asked Questions
Q: What does the -DS suffix mean on the S880-XL-A-DS part number?
A: The -DS designation means this wheel has double-sided (both sides) bearing support. This configuration provides increased stability and load distribution compared to single-bearing wheels. Use the -DS model if your truck is equipped with dual bearing supports on the axle or if the truck manual specifies dual-bearing wheels.
Q: Can I swap an S880-XL-A-DS wheel with a standard S880-XL-A wheel?
A: Not directly. The -DS has bearing provisions on both sides; the standard -A has a single bore configuration. Verify your truck axle design first. If your truck has dual bearing lugs or bosses, you need the -DS. If it has a single centered bore, use the standard -A. Installing the wrong type will result in poor fit, misalignment, and bearing failure.
Q: What maintenance is required for S880-XL-A-DS double-sided bearings?
A: Inspect bearing play quarterly on high-use trucks. Grasp the wheel at 3 and 9 oclock positions and gently attempt side-to-side movement. Any movement indicates loose bolts or worn bearings. Tighten fasteners on both bearing sides evenly to OEM spec. If play persists after tightening, both bearings must be replaced together to maintain alignment and balance.
Q: Does the S880-XL-A-DS cost more than the standard S880-XL-A?
A: Yes. The double-sided bearing configuration adds material and complexity, making it more expensive than the single-bearing -A variant. Purchase only the variant your truck requires. Do not buy the -DS thinking it is universally better; the standard -A is lighter and sufficient for trucks designed for single-bearing wheels.
Q: How do I diagnose which bearing side is failing on an S880-XL-A-DS?
A: With the truck blocked and wheel suspended, slowly spin the wheel by hand. Listen for grinding or gritty noise and feel for vibration in both bearing locations. Tap lightly on each bearing side with a soft mallet; a loose bearing will rattle or feel spongy. Mark or measure the play on each side with a feeler gauge. Replace both bearing assemblies if either shows wear; mixing old and new bearings causes imbalance.
Q: Are S880-XL-A-DS bearings sealed or open?
A: That depends on your truck design. Many double-sided bearing wheels use cartridge-sealed bearings that do not require field lubrication. Others use open bearing races that require periodic grease. Consult your truck manual to determine if your axle has sealed or open bearings. Do not apply grease to sealed bearings, as this can cause pressure buildup and bearing failure.