Mthead's Fuberg

[Stormin2u]

That's one immaculate rig dude you are one awesome builder. Seeing anything put together like that inspires me to have better planning and execution of my own work. Truly inspirational. "thumbsup"

 

[MTHead]

I want a How-to on those axle stands

Very nicely done rig too"thumbsup"

I'm hoping to produce the axle stands once i get them to fit 90% of the axles used, personally engraved if you wish. They are simply .125" acrylic laser cut to fit each other.

Thanks for the rig comments "thumbsup"

Very nice and clean build!"thumbsup"

DId you clocked the axles? Both?

Rear is clocked using longer upper links, this also helps in getting the knuckles up and out of the way some. Front has been clocked a few degrees by re-drilling the axle tubes and not the case. Hope that helps.

 

[MTHead]

That's one immaculate rig dude you are one awesome builder. Seeing anything put together like that inspires me to have better planning and execution of my own work. Truly inspirational. "thumbsup"

Well thank you Stormin ;-)

On to the cvd/cva.
The stock berg inner axles are quite stout and i had no doubts of their ability but i didn't like the fact that while at full lock only one half of the pin was engaged. You can see it here on the passenger side.

So, i did a little measuring and figured that the Berg inner axles had enough outside diameter to allow the Axial CVD inners to be fit into them.
I cut the Berg inners off just inside the bearing area and drilled a #29 (.136") diameter hole 1" deep. Then proceeded to cut the CVDs .9" inboard of the bearing mount.
Measurements:
Berg inners .1970" OD
Axial CVDs .1330" OD
Remaining wall thickness .032"

Due to the hardness of both the axles it ends up being a press fit even though the hole in the shaft is supposed to be .003" bigger from the #29 drill bit. I carefully tapped the CVD half into the Berg inner until it was the correct length, matching it up to a original inner (going off the bearing retainer lip.

Wanting to make sure they stayed together over time, i decided to pin the two axles halves together. I used a #50 drill bit for the pin hole and figure it's just as easy to use it as the pin too. Added a little Safety Silv at the pin location and mating joint.

All cleaned up and ready for install..

The first installation was with the Berg knuckles, however I ran into a few fit issues. First was the fact that the knuckles have about a .057" difference in thickness, which was allowing the CVDs retaining ring to slide outward releasing the pin, not good.. Here you can see the gap between the knuckle and ring.

The quick fix was to fabricate a new ring, with a longer overall length.

It worked decent but had to be an exact length since it was now holding the whole CVD from working out of the axle tube. To hard to reproduce, gotta be an easier way..
With some help from Mnster (Thanks bud "thumbsup") he quickly measured some Ax10 knuckles and determined they would work better but some trimming on the axle tube "C" is required. I choose the RC4WD knuckles from TCS due to the two mounting locations provided on the arm, worked great for my OTA/BTA setup. In order to get them to fit you'll need to file a few thousands from the upper and lower ears of the "C" as the Ax10 knuckles are a bit smaller in height, you'll also need to trim/file the outer section so the knuckle rotates properly since this is where the .057" difference is.

When your all done, it should look something like this... :lol:

Hope this helps "thumbsup"
John

 

[Stormin2u]

Now that was some nice tech to share with all of us. The mod looks fantastic, did you get a little more steering as well as strengthen that universal?

 

[Mic]

That is pretty impresive. Well beyond what my tools in the garage can do (and probibly more than I could even do with the right tools:ror

 

[Speed Demon]

The CVD/CVA really bit me... initially, I thought it was a just a drop-in from AX10 CVD.. but now... it's not:-(.. have to do some magic... or wait till someone produce them...
othe than that... it is still a very good build...... keep us posted.."thumbsup""thumbsup""thumbsup""thumbsup""thumbsup""thumbsup"

 

[rockbound]

wow very impressive!! nice job! "thumbsup"

 

[FrankyRizzo]

Thanks for the tech.

 

[MTHead]

Cool, Thanks again everyone! Hope it helped...

My rig weighs in at 7.4 lbs, about 5ozs heavier in the front. It will crawl slow speed with rest of them but has the ability to do this when you need a little excitment.. Not that you would need to do this in a comp, hopefully :shock::lol::lol:

Just had to try it...

Clicky

 

[EeePee]

And I thought mine was heavy! Wow man. That's straight up fatty!

 

[jbrentd]

Very nice.

I just need to un-subscribe from the whole Berg sub-forum. I'm just now getting my AX10 where I want it and now I want to build one of these.

 

[BoNuS LiNe]

very clean build !

i like your thinking my man "thumbsup"

regards

alan

 

[Brandon]

Looks Killer MTHead "thumbsup" Makes me feel so small with my berg, I thought it was cool until now :ror:

I cant believe you are heavier than me... I think you did that just because I said I was at 7.3lbs! :ror:

 

[MTHead]

And I thought mine was heavy! Wow man. That's straight up fatty!

I cant believe you are heavier than me... I think you did that just because I said I was at 7.3lbs! :ror:

What?? No BBW lovin :lol::lol:

I need to bring it into work so i can weigh it on a calibrated scale, Now that i think about it, it doesn't add up to what i was weighing the individual parts in at.. Can't be prematurely taking the fatty title... :lol:

 

[upnover1]

Maybe I missed it but what are the benefits of running ax-10 steering knuckles ? Does it move the arms away from the tire ?

 

[MTHead]

Maybe I missed it but what are the benefits of running ax-10 steering knuckles ? Does it move the arms away from the tire ?

That was the one of the easiest ways to adapt the Axial CVDs due to the slight difference in length of the outer stubs between the CVD and original.

If you switched to the standard dog bone Ax10 outer stubs you don't notice the difference since they don't really pin together like a CVD does.

And the RC4WD knuckles have the two mounting holes for the sterring linkage, so actually it does help there too. By using the hole closer on the arm, it puts the rod end inline with the beadlock ring and not the tire sidewall. You'll lose a small bit of leverage but that's what robot servos are for.. :lol:

 

[SpyderMonkee]

Clean work my man, clean work. I just got a big ole box from TCS in the mail this morning8), time to get to work. That cvd mod is gonna take me a while, but I got's to do it."thumbsup"

 

[4stAir]

i wish i had the tools and ability to do that... i guess i am just gonna have to hope someone wants my money.:lol:

 

[cars69]

John, I watched James D drive that rig after the Az Shootout.
I saw how it handled some awsome lines that most 2.2 rigs
would have a very hard time with. This is a top of the food
chain Rig. Good luck with it at the Nats.

Rick-

 

[Red Rockcrawler]

Nice work John. Keep up the good work. Looks really clean. :mrgreen: "thumbsup"