What are the bolt dimensions and spacing on the skid shoes used on the Kubota BX2816 snowblower?

I don't have a documented factory bolt-pattern spec for the BX2816's stock skid shoes; Kubota doesn't publish that dimension in the parts catalog or manual, and no source I found lists it precisely. What I can confirm and act on:

The SBS Armor skid product line uses a universal slotted mount rather than a fixed bolt pattern. The Home Depot listing for the ARMORskids Pro Series unit shows it's built to Fits 2 in and 4-3/4 in Slot Spacing, meaning the shoe has slotted holes at those two spacings so it adapts to multiple blower brands rather than matching one exact OEM hole-to-hole dimension.

Practically, here's the path other BX2816 owners have taken:

1. Don't chase a spec sheet, measure your own housing. Pull the factory shoes off and measure both the hole spacing and the housing thickness where they mount. That number, not a published spec, is what you order against.

2. Expect to drill new holes. Multiple BX2816/BX-series owners report the aftermarket shoes require new mounting holes because factory hole spacing doesn't line up with the universal slotted shoe, and side-mounted shoes (versus the rear-mounted factory location) is now the more common setup.

3. For your actual goal, raising scraper-blade height on gravel, know that owners of this exact blower have hit the same wall: the bottom edge still sits 3/4" above the pavement even with the skid shoe at its lowest level, and the bottom edge/wear bar is not adjustable. Adding a taller aftermarket shoe raises the housing, but if your goal is clearance over gravel rather than a lower cutting edge, that's exactly what you want; if you want the edge to run lower, the shoe swap alone won't get you there since the cutting bar itself isn't adjustable.

4. Before drilling, dry-fit the SBS shoes against your housing and mark hole centers rather than assuming symmetry between sides.

If exact OEM torque/hole spec matters for your project, a call to a Kubota dealer parts counter with your tractor's PIN would get you the factory drawing; that's not something published online.