by KCStudly » Wed Jul 20, 2022 4:11 pm
The hub face to hub face width on drop spindles might have to be wider than expected to maintain frame clearance. IIRC, finding this dimension in literature is difficult.
On my car hauler trailer I bought some premade surplus drop spindle axles and widened them to the max legal road width. I had already built the frame to a guesstimated width so when I fit them up to the trailer frame (2×4 box tube) the slanting inside of the drop riser was going to pinch the frame. I ended up boxing in 4 areas on the lower outside edges of the frame rails (double axle trailer) and adding big fish plates to the vertical inside surfaces to give the strength back taken by the notches.
Just saying, you should factor this in when figuring track width, fender mounting, and frame width.
KC
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