The big wheel kit converts your jack
to roll off road with ease. It comes with axle extensions for the
front that screw on and use a jam/set screw to hold them in place. The
rear axle is held with two aluminum side plates that bolt on. Polyolefin
caster wheels with delrin bushings are light, super strong and
Wheel options - both are 2" wide
6" - is good for most off-road conditions
8" - rolls easier on the soft stuff, but still needs a skid plate
-Fits 3 ton aluminum Harbor Freight and potentially other brands.
-Axle extenders thread over the front axle. The rear casters are removed and replaced with a bolt on axle.
-Axles are zinc plated or 6061 aluminum in the future.
Harbor Freight jacks
2 ton - 18mm shaft - 15mm wheel axle - 6" wide frame
2 1/2 ton - 20mm shaft - 18mm wheel axle - 6 5/8" wide frame
3 ton - 20mm shaft - 18mm wheel axle - 7 3/16" wide frame
We also have and are testing the applications for -
-5" wheels - are lower profile, but don't roll as easy
-Phenolic - is harder, but heavier-Roller bearings - are nice for a shop, but need grease