Another Structo Dump Truck Conversion

[frizzen]

Without knowing your plan for that axle, but thinking about gear mesh. It looks like you're thinking both bushing and bearings.

Would it work to thread half of the axle shaft so that you could run 2 thin plain nuts in a jam configuration on the right of that picture where the bearing is currently, to pull the mesh tight. Maybe do that on both sides for an easy adjustment of mesh and backlash.

Or a more difficult but much cleaner install could be milling a flat inside the pumpkin where the base of the crown gear sits, so that you can just shim the crown gears together. It'd be more annoying to set up, but your axle tubes could be thinner and it won't weaken the shaft like threading would.

[Rvjimd]

Dump Truck Conversion Take Two!

Got myself a donor with solid diff/axels and started over on the dump truck.

Here are the leaf springs and shackle so far. Leaves are made from steel strap and shackle parts are plastic chain links and aluminum channel.

Springs are about 3.5" eyes, might change once I get further into it and see how it sits.


Planning to use brass tube for the pivots


One shackle...


Stay tuned....

Jim

[Rvjimd]

Going to try a single helper and using heat shrink as a keeper


Axel mounted


Now I need to figure out how to solve the wheel and hex size mismatch. I have some wheels I plan to try but the hex is smaller than this one here.


Jim