Gearbox noise

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I see that you have 4 small bevel gears vs. my 2 but the diff rebuild kit only came with two small bevels. The part number you provided doesn't include small bevels. Do you have a Mega or is it a BLS/BLX. Maybe the Mega only has 2 small bevels and the others have 4?

Edit: Ok, now I see what you might have been talking about re: the difference between our two diff housings. The pin channel in yours is shorter which is why the pin in my 2013 spec maintenance kit was shorter than original. This is obviously a superior design in that the housing wall is thicker on the 2013 spec housing. It makes sense now why I couldn't use the pin from the 2013 spec kit in my original diff housing. Since I'm using my original pin, I think I'm fine but ordering up the 2013 spec housing is probably the safest bet.

I keep all the parts, even the old ones and have double checked the shim. It is most definitely a single shim.

I won't run it and I'm going to call Arrma customer support back. I only bought this truck in June (just have to sort out from where) so with a 2 year warranty I shouldn't have to ante up for a whole new diff.
Yeh I think that is a modd in his diff..... I have a granite BLX and I only have the 2
 
Thanks man! Thats a huge help! I am confident that I can upgrade the diff now. As long as the parts are available lol. Towe is doing a descent job with the parts!
 
Thanks man! Thats a huge help! I am confident that I can upgrade the diff now. As long as the parts are available lol. Towe is doing a descent job with the parts!
Don't forget to let us know how it turn out! ALOT of people on here depend on each other! Lmao! ...... I also wanna do a mamba max upgrade so if u get your done b4 me let me know how it work out!( watch that @Aflan guy!)
 
Yea I certainly will be posting before and after shots as well as progress pics and my findings! I see that dude all over @Aflan ! Seems like a good dude!
 
Hi

Skaxis what micrometer where you using, I need to get something better then the $3 one I have, and the one you were using looks like it is a decent one.
 
Hi Skaxis what micrometer where you using, I need to get something better then the $3 one I have, and the one you were using looks like it is a decent one.

It's ML Tools stainless steel jobber. I got it off Amazon over a year ago. Here's a link. I paid $19.05 for it then so it's gone up in price considerably. Here's one that looks like the same thing just under a different brand name.

[Time passes]

After some research I have discovered that my digital caliper is a rebrand of a General brand caliper sold at Home Depot. Here's a link to the HD site with the caliper. They sell it for $34 and from what I've read it's slightly superior to the ML brand version I have. I hope this helps!
 
Did the upgrade but have an issue. The new diff is smaller then the old composite one. And the metal gear that comes with dosent match up. What other parts do I need?
 

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WOW....so how did all of this work out...I am new to the KRATON world and now I am a little nervous, I bought a used one that someone modded and shimmed / changed the bearings, etc....I debated buying stock and doing it myself but Im glad I got one RTR...however, I am not sure I feel confident rebuilding this thing....or even where to start if I had to....anyone do videos, etc??
 
Think I figured out the issue. I have a Mega and the metal diff is for the BLX Gearbox?

AR310601 Mega Gearbox

AR310001 BLX Geargbox

After taking everything apart I found out that the output gear was the issue. Replaced it with this AR310016
Lesson learned, find the true issue before ordering parts.

Question, What grease should I put in the Composite diff? Replacing the out drives while I'm in here. AR310399
 
Curious if you took pics or watched a video on how to do this rebuild. Also, how long did it take. Noob here, trying to learn and pre-empt when I might have to do this myself. Even though the previous owner said the trans was bulletproof...
 
Curious if you took pics or watched a video on how to do this rebuild. Also, how long did it take. Noob here, trying to learn and pre-empt when I might have to do this myself. Even though the previous owner said the trans was bulletproof...

My pics are above and I used this thread and these ....

https://www.arrmaforum.com/threads/upgrade-mega-bls-plastic-transmission-to-blx-metal.596/

https://www.arrmaforum.com/threads/how-to-remove-the-1-10-arrma-tranny.940/
 
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