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i broke my drake diff :(

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anyways. so i over tightened it and i think i snapped the screw but I'm missing the allen wrench i need to dissasemble it.

so besides the allen wrench i need where can i get the pieces to the diff?


ehh x that where can i find a place to get the losi hex drivers too
 
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The Losi XXNT diff comes with all plastic gears....replace them with compound gears while you have it apart....will be well worth it....i promise...you can pick them up at your local hobby shop or you can replace with this

http://www.robinsonracing.com/catalog/catalog.html

also as far as that little diff screw and nut ...the nut most likely didn't strip but the plastic carrier more than likely broke...I have done this several times myself by overtightening the diff.....

HG makes an Al. nut and carrier piece that replaces the nut and carrier on the NT...I tried to link but it only goes to there homepage

http://www.1hg.com/home/Indexnf.htm

on the left side where it says Cool Toys Catalog.....scroll over it and it reveils the menu...go to components and on the right side there is a list of vehicles...go to Losi TripleXNT...and it should be there.


screw and washers and carrier come together....they are Losi P/N ...A2909 the nut is Losi P/N A6908

you should be able to pick these up at your lhs

-Sag
 
I'm 100% sure it was the screw now.

i dint strip the screw
i snapped it in half
 
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Go with what Static said, it's what I run. I havn't had to re-work the diff in over 4 gallons of abuse.

I also went with losi's carbide diff balls. Between these, the RRP aluminum monster gear and the HG diff nut, it bullet proofs the trans.

After you rebuild the trans about the 4th time in 2 gallons, you'll know what I mean. It gets old fast. While your in there, you may want to pick up an aluminum rear pivot block. I've broken those things left and right. Never did buy an Aluminum one though. Should've, but didn't.
 
I'm not in the mood for spending all of the 50$ ill have for fuel and future breaking =\

i dont have a job. its gotta last
 
$50 spent now will save you at least that much in the future with all the gears you will be putting into the trans every time it blows on you.

Just a thought. Sometimes it's worth buying the parts to fix something permanently even though you will have to shelf the truck for awhile until you get $ to drive it.
 
I snapped my diff screw the first day I got my xxxnt sport. the manual says tight as possible so to me that meant as tight as I could get it and "pop!" it snapped on me and yes it was the screw not the nut. I got some good news for ya though. You wont have to disassemble the tranny to fix this. Just remove the tranny from the truck and take the smallest allen wrench and push off the diff nut and carefully push out whats left of the diff screw by inserting the alllen wrench in the side that you removed the nut from by sticking it in the hole where the screw is in the diff. Get the monster diff hardware from horizonhobby.com for like 3 bucks and replace the parts you removed.
 
well I'm replacing all the screws in my truck (hexcrews) and when the day comes where i do strip my diff gear. i shall pick up a rrp metal one. why not squeak everylast bit of "value" out of the plastic one
 
Your preaching to the choir arrow. I'd just suggest having it on hand for when the plastic does brake is all.

I'm one of those guys that has so many spare parts, i could build another truck or two. I hate not being able to play on sunday because of a mistake on saterday.
 
when i get a job ill probly do that. atm my money is for fuel and actual breaks
 
I have stripped several diffs in my NT and have also broken the diff screw. BUT, The plastic carrier I mentioned above cracked as a result of overtightening (I did exactly what sikz3 did...lol....and snapped the screw itself) You can overtighten easily cause you can't feel how tight it is because the plastic nut carrier gives a little each time you tighten the diff. This is why I would at least replace the carrier.

Ask you local dealer for the "compound" parts to rebuild the tranny with. They only cost a couple dollars more than the stock plastic. I paid less than 25 dollars for them.

Once you have the rebuilt diff good and "snug" try this to help prevent future tranny problems. Loosen the slipper to the point where when both tires are held in place the spur gear will move slightly when you try to turn it. (this should take a fair amount of pressure to turn) You want it to barely slip. I started at 5 turns out on the slipper and tightened in 1/8 turn increments....stopped at 4 1/4 turn out. Yes this will inhibit the initial acceleration but it will also 1) take the pressure off the diff 2) allow for better straight line acceleration because it lessens wheel spin on a slick surface like a hard pack track 3) reduce the wheelieing while bashing in the grassy backyard Since I went to this looser slipper set up I have not any tranny probs. Thanks to Adam Drake for this tip....lol

Hopefully this will help keep you running and not working on it....


-Sag
 
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The only problem with your theory is that the diff isn't designed to be a slipping diff. That's what the slipper clutch is for. I tried this with mine and it toasted it pretty quickly. Melted the monster gear and torched the ring washers.

I've read somewhere, maybe the manual, where they express that this diff is not designed to handle slipping.
 
Notice that I am refering to the slipper having slippage and not the diff.....the last part of my post says.....After you have the rebuilt diff good and snug......What I do is let the slipper slip more to compensate for on the throttle landings and such that could harm the fragile plastic tranny gears.

Always keep the diff tight....I used the word snug to help stop a new guy from overtightening the diff.

No offense but I think you may have read my post wrong..:)

-Sag
 
Well, I understand drakes point of view here but unlike him I don't race profesionally and don't get to replace my diff as often as I would expect he does. I built mine to last. Before the replacements I made I stripped 5 diff gears in less than a 1/2 gallon. After the set up, I'm on gallon #3 and havn't even had the tranny apart since. I am in no way saying I'm smarter or better or even close to the mighty Drakeman himself but I do know my tranny has held up through some serious thrashing and I stripped those first few while playing in the yard and driveway. We all have our druthers and since I have had no problems at all with this set up I'm gonna keep it just like it is.

I'm all about durability when it comes to the tranny.....And don't ya think Sir Drake could go just as fast just as long with the metal diff gear?

-sag
 
drakes point of veiw was that it puts to much stress on the idler gear causing it to lose alot of reliabilty
 

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