Structo dumptruck conversion

[frizzen]

So lessons from indy:

Rock crawlers aren't fast. Taking the 3.770 tall tires off and replacing them with 2.315 tall tires means that you need to pull over and let everyone pass. Seriously, everyone passed me. I can reach top speed in under a yard. I have more torque than the tires could ever use. Must regear the trans!

Drilling brass bushings from round stock by hand makes a really wobbly setup. I need to either redo wheel pin drive using tubes, or grind the tires to the new round, or get different rim/tire combo.
I also learned its possible to have a car shake the rear suspension apart, um, in like 1 battery pack. but the crowd seemed to like it

Setting the suspension up for heaping load of dirt doesn't work that well for crumb rubber. Full load of rubber, no movement.. this didn't help the out of round tire situation since there's no real spring or any dampening. Once i got home I loaded the bed with soda cans, and learned the rear springs didn't get near max out until 6 pounds, i need to pull a leaf..

My transfer case still needs lowered since my drivelines are horrible, i need to shorten the rear springs. i need to put deans plugs on so i can use better battery and charger. I need some lights, a trailer hitch, and mudflaps. i've also got a few ideas for some interior detailing...

Kinda getting tired of talking to myself though.

[frizzen]

If anyone may be interested in these donors, here's a bit more i've learned.

Turns out I used a 1965-66 only configuration Structo hydraulic dump truck. I still have no clue if it's supposed to be based on any kind of real truck, or just a generic truck.

Stock steering on the Redcat Everest / Exceede Maxstone donor is kinda bad and understeers a lot, here's the biggest part of the fix:
http://www.rccrawler.com/forum/newbi...tuning-10.html
Redrill knuckles for zero ackerman, make new draglink and tierod. Eliminates tire scrub, it's still turning a 4 locked truck, but atleast you can steer the same direction.

On the trans, up to 370 brushed motors fit, and stock esc will support them.

The differentials have a 14t pinion, 38t ring. Which is 2.714 to 1.

The motor pinion is 14t. i don't yet know the spur size, or the trans total ratio.

Any specs or dimentions that might be helpful?

[frizzen]

So what's the most important part for a DUMP truck to have?

Yeah, you'd really think so...


But instead of getting that part so it can DUMP: i made light mounts, hacked servo board so the lights can be activated from the tx, made a trailer hitch, started working on a trailer, and made the steering wheel i'd thrown in there look less like a round servo horn.

Other than softening the rear suspension a little by pulling the smallest helper spring, i haven't done much of the planned mods.

Thinking i may try adding Plastidip to the tires to see if it helps with the traction situation. I knocked more rust off the hubcaps, but didn't try for too shiny, this trucks not about that life.