Possible upsize for AX-10 trans outputs ?

[Offroader5]

I was browsing Tower for numerous different parts when I saw something that could possibly work to upsize the output shafts on the AX trans. The trans has 5mm output shafts which means the yokes that fit them without modification are the Stampede size yokes (like the steel yokes), or the stock/aftermarket one's from Axial. Alot of people like to run Maxx shafts which need a 6mm shaft to slide on to.

So here's what I thought...if you look at the actual part in the trans that gives you the outputs:


It looks somewhat like this part, which is called a starting shaft:


This "starting shaft" has a 6mm shaft, a 24mm diameter at the base, and is overall 30mm long. The Axial part in comparison has a base diameter of 23mm and an overall length of about 18mm.

If you took this part & drilled the three holes around the circumference needed to screw it to the inside of the gear in the trans, it should fit. You may have to source and replace the bearing that the shaft exits the case through so that it has a smaller ID. Also, with the added overall length of the new part, (which is all in the shaft length), it gets the driveshaft's yoke out farther from the trans case allowing the use of larger spur gears.

Look feasible? Maybe I just need to buy 2 of them and try it out and report back.

[Mnster]

Getting it straight, drilling through hard metal, taping through hard metal, buying new $ bearings hoping it works out in the end.

OR

http://rc4wdstore.com/product_info.php?products_id=557

OR
Sleeve the stub with 6mm tube.

[Offroader5]

Originally Posted by Mnster

Getting it straight, drilling through hard metal, taping through hard metal, hoping it works out in the end.

OR

http://rc4wdstore.com/product_info.php?products_id=557

Well, yeah...there is that option :-P I was just thinking of the "swap out parts" option. I hate to do things the easy way

[Mnster]

If you have a lathe, or you can even use a file while the trans in turning. You could glop JB weld on the shaft let it cure and sand it to 6mm. What you do on the trans end you will also have to do on the axle end. JB would take up the slack.

[RivBlueNoma]

Why not just use transmission yoke #4927x from an t-maxx? Those are 5mm.

[Eritex Inc.]

Originally Posted by RivBlueNoma

Why not just use transmission yoke #4927x from an t-maxx? Those are 5mm.

That is what I have been doing for 3 years. Cheap, darn near a mod less swap over, and it just works.

[Natedog]

Originally Posted by RivBlueNoma

Why not just use transmission yoke #4927x from an t-maxx? Those are 5mm.

Yup using them on my Wheely King J2-TT truck.

[Offroader5]

Originally Posted by RivBlueNoma

Why not just use transmission yoke #4927x from an t-maxx? Those are 5mm.

Are those the larger ends though? So the trans outputs on a Maxx are 5mm while the rest of the truck is 6mm? I thought the whole truck used 6mm.

Originally Posted by Natedog

Yup using them on my Wheely King J2-TT truck.

So you used this at the trans end for the Axial and then the standard Maxx axle shafts for the axle pinion right?

[Mac10]

I just switched to the axial trans and I am running wk axles and maxx shafts.
I was using the tmaxx yoke on my R2 and now the axial but I ran into a problem.
the yoke rubs the 87t spur gear. had to go down to 84 but now it's a little too high geared!
I am thinking about going back to the 87 and just filing down the yoke to clear it.

how are you making the maxx shafts stay on the axial trans outputs? I cut my set pins and made them like a set screw but am not sure i they will hold.
any suggestions?

[sloppy]

the trans output shaft is 5mm the rest of the truck is 6mm
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDDT2

Originally Posted by Offroader5

Are those the larger ends though? So the trans outputs on a Maxx are 5mm while the rest of the truck is 6mm? I thought the whole truck used 6mm.



So you used this at the trans end for the Axial and then the standard Maxx axle shafts for the axle pinion right?

[RivBlueNoma]

Originally Posted by Offroader5

Are those the larger ends though? So the trans outputs on a Maxx are 5mm while the rest of the truck is 6mm? I thought the whole truck used 6mm.

Correct, the T-maxx tranny had 5mm outputs while the rest of the truck is 6mm. You might be thinking of the E-maxx which has 6mm on everything including the tranny.

Originally Posted by mwrighttt

how are you making the maxx shafts stay on the axial trans outputs? I cut my set pins and made them like a set screw but am not sure i they will hold.
any suggestions?

You need to drill holes in the Axial outputs for the Maxx set pin to pass thru, that is what will hold it on. Your set screw idea whont hold very well because those yokes are only made of plastic.

[THnCS]

Originally Posted by RivBlueNoma

Why not just use transmission yoke #4927x from an t-maxx? Those are 5mm.

Works perfectly

Originally Posted by mwrighttt

I cut my set pins and made them like a set screw but am not sure i they will hold.
any suggestions?

That's what I did was to cut the traxxas pins down and screw one on both sides to hold on the tranny. So far they work pretty well and do not slip. I also used a drill bit to put a dimple on the tranny output for the set pins to grab more. I am pretty trigger happy and had no slippage. I did have to retighten the pins on the front once while out the other day. That is what dig will do!!

Originally Posted by RivBlueNoma

You need to drill holes in the Axial outputs for the Maxx set pin to pass thru, that is what will hold it on. Your set screw idea whont hold very well because those yokes are only made of plastic.

Becarefull when drilling the axial shafts, you will weaken them greatly!!! I did it and they are now broken!!! That is a $25 part to replace!!!

[Offroader5]

Thanks for the info guys....yeah, I was thinking of the Emaxx and just assumed all the Maxx would be the same. I think i am going to pick up both the 4927x yokes and the RC4WD adapter to have all the bases covered.

Fine....forget my idea, I'm taking ma ball and I'm goin' home:-P

Originally Posted by mwrighttt

I just switched to the axial trans and I am running wk axles and maxx shafts.
I was using the tmaxx yoke on my R2 and now the axial but I ran into a problem.
the yoke rubs the 87t spur gear. had to go down to 84 but now it's a little too high geared!
I am thinking about going back to the 87 and just filing down the yoke to clear it.

You could use the 5mm to 6mm adapter like posted above. This would push the yoke out further from the trans and should allow the use of larger spurs.

http://rc4wdstore.com/product_info.php?products_id=557