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KidsWheels
Gruber
HobbyMasters
M.L. Toys
KidsWheels
HobbyMasters M.L. Toys
Gruber
KidsWheels
Swapping wheels? Adding suspension? Adding traction mods? This is the place for anything between the body and the ground!
#129779
Hi All, I am upgrading a Dune Racer for my neighbors kids. I found the perfect wheels for the rear and front. In fact the rears exactly fit the 3/4" Axle.

Front Wheels
http://www.harborfreight.com/13-inch-x- ... 37767.html
The fronts have a 5/8" bearing hole and the Dune Racer has a 7/16" Axle.. Any ideas for a bushing?

Rear Wheels
http://www.homedepot.com/p/Arnold-15-in ... /202188267
The rears have a 3/4" bearing hole and the axle is exactly 3/4" :mrgreen:

I have to get creative on the wheel driver since its integrated into the inside of the Stock Rim of the Dune Racer.

I am going to buy a pair of Wheel Drivers and Need to know the size of the axle hole. Would anyone be able to tell me what size axle hole this fits?
http://www.ereplacementparts.com/wheel- ... 23281.html
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#129780
That fits 1/2" axles. You are going to have to get EXTRA creative :twisted:
#129781
Actually, its 7/16 or 11mm :P

A wheel driver from a Gen1 12V monster traction F150 should work. It uses a 3/4 axle and is similar to the one above....but not exactly the same.

See if you can beat a old style PW hex bushing in the front wheels (found in Harleys, MF Jeeps, and early Quads and Bigfoots) Others have used some plastic pipe or tubing for a bushing.
Last edited by taz11 on Mon Jan 12, 2015 6:46 pm, edited 1 time in total.
#129790
Taz is right again. :oops: I remembered them as being a bigger part of the wheel :?

Tiger imports has them for a reasonable price http://tigerimports.net/sunshop/index.php?l=product_detail&p=10486

Image

Learn (remember?) something everyday... :lol:
#129798
taz11 wrote:Actually, its 7/16 or 11mm :P

A wheel driver from a Gen1 12V monster traction F150 should work. It uses a 3/4 axle and is similar to the one above....but not exactly the same.

See if you can beat a old style PW hex bushing in the front wheels (found in Harleys, MF Jeeps, and early Quads and Bigfoots) Others have used some plastic pipe or tubing for a bushing.


Thanks guys.. I saw this thread about drivers and wheels and dimensions. but it did not list this wheel driver.. thanks for coming to the rescue

viewtopic.php?f=9&t=5382

I found the suggested driver here and ordered 2.

http://www.hobbymasters.com/search.aspx?find=K8285-2279

Do you think this should be fairly easy to mount to the rear wheels I picked? I assume drilling the wheel and a bit of dremeling on the driver..
#129810
I've used flanged bearings from McMaster which worked perfectly: http://www.mcmaster.com/#standard-sleev ... gs/=vgdz5x" onclick="window.open(this.href);return false;

EDIT: http://www.mcmaster.com/#6338k466/=vgdzq6" onclick="window.open(this.href);return false;
Last edited by wesleyb82 on Tue Jan 13, 2015 7:10 pm, edited 1 time in total.
#129874
wesleyb82 wrote:I've used flanged bearings from McMaster which worked perfectly: http://www.mcmaster.com/#standard-sleev ... gs/=vgdz5x

EDIT: http://www.mcmaster.com/#6338k466/=vgdzq6


Nice Find! I wanted Metal bearings over the Plastic ones but they were too expensive.. These are perfect.. I just ordered a set of 4.. The fronts are going to be easy.. I also just received my rear wheel drivers.. I will be figuring out the best way to mount them.. Most likely going the 4 bolt route once I figure out the offset needed.
#129919
I got the bronze flange bushings in today.. They worked perfectly on the front wheels. These are the 13" Harbor Freight Wheels. I needed just 2 little plastic spacers to get the axle nut down and have no lateral slack.
Image

Now that I look at that.. I would be better putting the spacers on the inside.. :oops:
Now on to the Rears. :mrgreen:
Last edited by chuckster on Tue Jan 20, 2015 5:46 pm, edited 2 times in total.
#130106
I used 13x6.5 tires from Marathon on the F-150 MT. They had 3/4" bearings, which worked great on the rear axle (I replaced the 3/4 tube with 3/4 solid bar). For the front I got a piece of 3/4 od by 1/2 id cold rolled steel to adapt the standard PW front axle. Unfortunately the front is somewhere in between 7/16 and 1/2", so I got a piece of nylon tubing from amazon that was 7/16 id x 1/2 od as a sleeve.

To adapt the drivers to the rear wheels I got a large washer that would fit over center tube on the wheel, put 4 bolts through the washer to mate to the 4 holes on the PW driver, and welded the washer to the wheel. I then put steel inserts into the 4 holes on the PW driver to help reduce wear. Seems to be working well so far.

I threaded the front PW shafts for 7/16 x 20, and used nylock nuts. On the rear I used clamp collars in lieu of threading the shaft...

I'll post some pics when I get a chance.
#130144
Image

Had to dremel the PW driver a little to get he wheel spacing right.

Image

Here is the driver in the wheel. You can see the steel inserts, I epoxied them in place after this pic.

Image

The inside of the wheel... I originally attached the washer with 8x32 machine screws, but the wheel metal was only thick enough for about 2 threads. I welded it after this pic was taken, you can see where I ground the powder coating off to get a good weld.

Image

The Milwaukee 36v drill switch I used for a variable speed throttle.

Image
#130165
That's awesome.. I was just about to post pics of my finished ride.. How is the Variable speed throttle holding up? What is the Part number you used to purchase it? What Voltage are you running? I am putting in a brake resistor and hope to do the Drill mod shortly.. Not ready to crank the voltage yet as I am trying for longevity of gears first. Lastly I am adding a set of LED Headlights

I plan to paint the rims with Black Plasti-Dip

Image

Modified Hub. Drilled out to accept 3/8" bolts

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The Hub Installed.

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Last edited by chuckster on Tue Feb 03, 2015 5:40 pm, edited 1 time in total.
#130167
The switch is holding up quite well so far. I'm only running 12v, but it's rated at 36v/25A nominal, with 50A over-current protection. It seems very robust, and is mircoprocessor controlled. The company who makes is Marquardt... German engineering and all that. Model # is 23-66-0023

http://www.ereplacementparts.com/switch ... 23-66-0023

Fabricating the bracket to mount the switch was a pain, there isn't much room in the housing on the F-150. I also made a dust/liquid boot around the pedal using a 1/32" silicone rubber sheet and some RTV. Without it the switch would be fried by the first spilled drink. etc...

It just shorts the motors for braking though, which could be hard on the GBs. I've been teaching the kids to let off the throttle slowly.

The extra traction is great, from a standing start it will climb a 6" curb. The ride is smooth, and the reduction in noise is great too.

I installed a Gruber Power 18ah battery using the original PW connectors. I cut the plug off the factory charger and put it on my schumacher battery tender to make things easy for the Mrs.
Last edited by DallinWatson on Tue Feb 03, 2015 11:14 pm, edited 1 time in total.
#130178
Dallin..... That is great info on the switch mod. Any chance I could talk you into a quick write-up in the BPRO ESC section. The info will most likely be lost here since the topic started about tires.

I think many could benefit from this.
Last edited by taz11 on Wed Feb 04, 2015 6:30 am, edited 1 time in total.
#130180
taz11 wrote:Dallin..... That is great info on the switch mod. Any chance I could talk you into a quick write-up in the BPRO ESC section. The info will most likely be lost here since the topic started about tires.

I think many could benefit from this.


+1! :D
#130185
taz11 wrote:Dallin..... That is great info on the switch mod. Any chance I could talk you into a quick write-up in the BPRO ESC section. The info will most likely be lost here since the topic started about tires.

I think many could benefit from this.


Sure.

I'm out of town and away from the F-150 MT at the moment, but I'll get started on something and post pictures when I get back.
#143722
How has this held up over a summer of use and abuse?

I just scored a Dune Runner - needs wheels!
#147642
DallinWatson wrote:
taz11 wrote:Dallin..... That is great info on the switch mod. Any chance I could talk you into a quick write-up in the BPRO ESC section. The info will most likely be lost here since the topic started about tires.

I think many could benefit from this.


Sure.

I'm out of town and away from the F-150 MT at the moment, but I'll get started on something and post pictures when I get back.


Did you happen to write up something yet or I missed your thread somewhere?

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