Kraton Damaged Outdrives

[Pepijj221]

While removing the motor from its place a saw the damaged outdrives shaft things..
Anyone know the cause of this? And solution?
Just running 14t. stock diff.

 

[ParkRacing]

While removing the motor from its place a saw the damaged outdrives things..
Anyone know the cause of this? And solution?
Just running 14t. stock diff.

They are soft! I think someone has covered how to harden them?

 

[Trickelitrick]

Anyone know if and then what team durango diff outdrives part nr i can replace cause the arrma outdrives (ar310439) are out of stock everywhere around in swe and i don't wanna go ebay

 

[MeesterC]

While removing the motor from its place a saw the damaged outdrives things..
Anyone know the cause of this? And solution?
Just running 14t. stock diff.

This is caused by hard throttling. Full trigger from dead stops and on/off full trigger. The out drives are known for being soft and the hard throttling eats them up. One way to reduces this is to spray them with some kind of lubricant other than wd40. WD40 is water based and causes more damage than good. I spray mine down after each bashing session with PB blaster, it's a lubricant and prevents rust. You will need to replace these and you can search the forums on how to harden them. Some use water for this and others use oil, the oil seems to be the best way because it cools slower making the metal stronger. Good luck with it.

 

[Pepijj221]

This is caused by hard throttling. Full trigger from dead stops and on/off full trigger. The out drives are known for being soft and the hard throttling eats them up. One way to reduces this is to spray them with some kind of lubricant other than wd40. WD40 is water based and causes more damage than good. I spray mine down after each bashing session with PB blaster, it's a lubricant and prevents rust. You will need to replace these and you can search the forums on how to harden them. Some use water for this and others use oil, the oil seems to be the best way because it cools slower making the metal stronger. Good luck with it.

Thanks for the helpful information!

 

[MeesterC]

Anyone know if and then what team durango diff outdrives part nr i can replace cause the arrma outdrives (ar310439) are out of stock everywhere around in swe and i don't wanna go ebay

I found this but not sure if it helps or not.
https://arrmaforum.com/threads/talion-tips-and-tricks.51/#post-12121

 

[Pepijj221]

Is it necessary I replace the drive cups now they are damaged?

 

[Trickelitrick]

Is it necessary I replace the drive cups now they are damaged?

not necessary right now but they will wear down quicker once they've started to be damaged, so do it now or drive until you lose power . but when you're gonna replace i would replace both the driveshaft and cups at the same time or you will get the same problems again very soon.

Just as I was going to rip the snow i lost my 4wd :(

• Trickelitrick
• Jan 4, 2017
• 3

 

[jonUF02]

Mugen MBX7 are a higher quality direct replacement.

 

[rag6]

Dog bones too or just outdrives?

 

[jonUF02]

The drive cups are direct replacement for stock, dogbone would depend on length, I'm not sure

 

[JvG]

By a torch and harden them, works great. The cups will last much longer.

 

[ParkRacing]

Best alternative, mbx7 or hardened Kraton?

 

[Dakota]

Mugen MBX7 are a higher quality direct replacement.

Do you have the part number I looked up and can’t find

 

[Dakota]

Mugen MBX7 are a higher quality direct replacement.

Are these them ? Will they work for front and rear

 

[Dakota]

Or is this what I need to buy will it work for the front and back dog bone cups

 

[bicketybam]

@Dakota The post you quoted is nearly 2 years old. I highly doubt you will get an answer.

 

[jonUF02]

I bought the complete diff on dollarhobbyz for pretty cheap. Only didn't use the Mugen cup and outer gear.

 

[Dakota]

I bought the complete diff on dollarhobbyz for pretty cheap. Only didn't use the Mugen cup and outer gear.

Will the cups that I last posted fit into the Arrma v4?

 

[jonUF02]

No idea about v4. I went for the aluminum HR cups for replacement. Check part diagram between older and v4