PFB Tri-Axle King Hauler

[pigeonfarmboy]

Originally Posted by sgt hopkins

Def. a build worth following.... what is the length of your frame rails?

+/- 26"


Haven't done much work on her lately, but I did go ahead and hack off the sleeper. Not sure if it'll stay this way depending on electronics layout but the trans/motor fits nice even with the interior in it. The front bumper will be milled smaller for more clearance.



RC4WD R2HD Trans with Holmes Hobbies 7t Cobalt Puller should do this rig proud. I'll be able to put a powered axle in front should I decide it needs it.



If it stays a daycab, the headache will need to be cut down a bit.

[doodlebug]

One thing to consider, on grade's or off road site's, I have heard of 980's & 988's pushing the trailer, to help the truck out and not squirt the driveline out.
This is worst case senerio,
but at the show's, it's nice to have friend's help out with that "BMF" load!
That's big monster frustrator for the clean version!
The old Gibbon's & Reed Pit in Kaysville, Utah, had close to 20% grade going up into the pit.
Cheer's, Neil.

[fuzzy]

20% that is steep. the best i ever did was 17% in (you may not believe this ) in iowa!!!

[doodlebug]

Originally Posted by fuzzy

20% that is steep. the best i ever did was 17% in (you may not believe this ) in iowa!!!

Give or take, Just not truck friendly!
Cheer's, Neil.

[rcguyfarms]

A Holmes Hobbies 7t Cobalt Puller, are u wanting to shred some tamiya axle gears and twist a drive-shaft!

[Lil Giants]

What's the spec's on that motor?

[pigeonfarmboy]

I've put a fair amount of stress on these ring and pinions before. I know they'll fail eventually though.

Specs on pullers:
You can't find a more powerful brushed motor in this class. You get insane wheelspeed, more torque than any 540 motor, and the finest slow speed control. All in one motor. 7 slot armature allows for better throttle resolution with a high motor speed.

Recommended lipo battery-

6t- 2s only. 40a continuous
7t- 2 to 3s (3s may result in overheating). 45a continous 11.1v use, 35a continuous 7.4v use
10t- 2 to 3s. 40 amps continuous 11.1v use, 30 amps continuous for 7.4v.
14t- 3 to 6s. 35a continuous 22.2v use, 25a continuous 3s use

Slightly longer than a standard 540 motor. Uses standard 1/8" pinions, and 25mm motor mount spacing- bolts up like a normal 540 motor. **Some stock uses 4-40 mounting screws that are included**

Super Strong cobalt magnets
7 slot armature
6.9 ounces, 200g
2.5" long, 1.35" diameter
5-10 volts
160*F max

6t- TBD
7t - 2800 rpm/volt
10t- 1800 rpm/volt
14t- TBD

[Espeefan]

You should just go ahead and give this truck a powered front axle. I think you'll like having it, and it would raise the front bumper up a touch. You might not even need to mill it. If it's worth building, it's worth over building!

[crawler07]

great looking rig man.

[CustomClod]

I like it! Keep the sleeper off. Looks better!
Scott
Just my opinion

[doodlebug]

Maybe it make's it "GO FASTER" LOL!

[SWAGGER]

CAT TV?

[CHEVYHD496]

this truck is awesome. im a big fan of tri-axles! just wondering, but i was wanting to get new frame rails for my KH and wanted to know what height yall are using? im gona buy aluminum C-channel. thanks

[pigeonfarmboy]

Just buy some from GardenTrucking.com

[pigeonfarmboy]

Got some work done on the rig tonight.

Here's the mount I came up with for the R2HD trans:


It's only mounted to one side so I thought I was going to have to brace it to the other side frame but it feels pretty solid.


00 Biddle KDub grill!

[Tamiya Cowboy]

YEEEEAAAH BUDDY! That motor will do the trick I have one in my tri axle and she pulls like a champ.. I am glad I got a few before they stopped making them.

[Espeefan]

Thats a pretty nice trans mount! Looks beefy. I'd build another for the otherside, if it was mine, but sometimes when you are making parts like this, by hand, you're lucky if the holes come out where you want them, and they line up the first time! It becomes a question of you deciding if you really feel like making a copy of the same parts!

[pigeonfarmboy]

Theres no mounting holes on that side of the trans. Would have to tie a bracket in from the top. Problem with that is the top of the trans already hits the interior floor. Would like to keep that in tact if possible.

[Izzy]

With that frame support just behind the trans I think you will be OK - at least untill most everything else is mounted up. Why not poke some holes in that other side? you would have to take it apart to clean up the shavings and such though...

[pigeonfarmboy]

Why is Izzy always wanting to poke holes in things? Weirdo...