Im having problems with new steel driveshafts.

AK SNO RIDER · 07-04-2009, 04:45 PM

well i got the traxxas steel driveshaft set a few days ago and i took my erevo to a sandpit today. within 2 minutes the right rear driveshaft fell apart where it connects to the diff. the pivot ball on the end of the shaft fell out of the cup. i though, no big deal, ill just put it back together. so i did and it ran great for the next 20 minutes, and i was having a blast, but after a hard landing the driveshaft fell apart in the same place again. it doesnt seem like it has enough play to slide out of the cup, but apparently it does. does anyone know what my problem could be and how i could keep this from happening again?

yzf128r · 07-04-2009, 04:56 PM

are you running rpm arms? if so, they have a lot of flex and will cause the alxles to pop out of the drive cups. You can also get the extended drive cups, those with shock arms should work fine.

REVO7 · 07-04-2009, 05:07 PM

They don't tell you this stuff when you buy them, otherwise you would look at those nice new shiny Traxxas Steel CVD's and say no, I can't run those with my RPM A-Arms. You have done what a lot of have done and made the critical mistake of buying those Traxxas Steel CVD's and they pop out, right when you are having a good time. Best advice, take them off, put them on ebay and start running stock axles again like the rest of us. I personally don't think they can be used even without the RPM A-Arms, because a few years ago Traxxas widen the stance of there Nitro and Electric Revo's and never made the CVD's longer. When I had them, I looked high and low for a longer diff cup to solve the problem and it's not out there, Traxxas made one 1mm longer then the one's that come in the kit, but that was it. Cut bait and sell them and put the stock ones back on and you will be much happier, I was.

Hockeyplaya20³ · 07-04-2009, 06:01 PM

sell em
buy http://cgi.ebay.com/Traxxas-T-maxx3-...lenotsupported
love mine

revo guy · 07-04-2009, 06:05 PM

Quote:

Originally Posted by REVO7

because a few years ago Traxxas widen the stance of there Nitro and Electric Revo's and never made the CVD's longer.

traxxas NEVER widened the revo's from the original 2.5 revo. They did stretch its wheelbase with a longer chassis and extended rear a-arms. The platinum edition revo has offset wheels that make it wider.

the extended drive cups are for when you use the extended rear a-arms.

and I have been using mine for months and have not a single problem. I am using RPM arms front and the True Track in the rear.

AK SNO RIDER · 07-04-2009, 06:46 PM

Quote:

Originally Posted by revo guy

traxxas NEVER widened the revo's from the original 2.5 revo. They did stretch its wheelbase with a longer chassis and extended rear a-arms. The platinum edition revo has offset wheels that make it wider.

the extended drive cups are for when you use the extended rear a-arms.

and I have been using mine for months and have not a single problem. I am using RPM arms front and the True Track in the rear.

the extended drive cups can be used with the normal a-arms too tho cant they? i see no reason y not. what kind of driving do you do? i take A LOT of big jumps.

revo guy · 07-04-2009, 07:28 PM

in the instructions it says that the pushrods should not be in the innermost holes. so if you are doing big jumps they might be.... and that could be your problem

AK SNO RIDER · 07-04-2009, 07:39 PM

oh ok thanks. i can see where that might help. i never actually read the instructions lol.

Super RC Driver · 07-04-2009, 10:02 PM

Do your pushrods have any spacers on them? If so the extra suspension travel they give allow the CVD drive shafts to pop out.
__________________
I know people by their cars...

REVO7 · 07-05-2009, 11:43 AM

Quote:

Originally Posted by revo guy

traxxas NEVER widened the revo's from the original 2.5 revo. They did stretch its wheelbase with a longer chassis and extended rear a-arms. The platinum edition revo has offset wheels that make it wider.

the extended drive cups are for when you use the extended rear a-arms.

and I have been using mine for months and have not a single problem. I am using RPM arms front and the True Track in the rear.

You are very lucky, because I wouldn't have bought them, had them keep coming out and sold them if they would have worked for me. I could keep the fronts in, because I could run the pillow balls in so far that the axles wouldn't come out, but the Tru Trac, I had to run in the top pillow ball so far, I had like 5 degrees of negative camber just to keep the back ones from popping out. I'm glad they are working for you and the others, but I will stay with the stocks and there cheaper to replace if needed. I do believe that there was one version of the Revo, (I can't remember if it was Nitro or Electric that they had extended A-Arms).

revo guy · 07-05-2009, 02:26 PM

The revo platinum had the wheelbase extending rear a arms

Hockeyplaya20³ · 07-05-2009, 06:40 PM

Quote:

Originally Posted by Hockeyplaya20³

sell em
buy http://cgi.ebay.com/Traxxas-T-maxx3-...lenotsupported
love mine

ignore my comment
i dont like them anymore... lol

AK SNO RIDER · 07-05-2009, 09:57 PM

Quote:

Originally Posted by Hockeyplaya20³

ignore my comment
i dont like them anymore... lol

lol, what happened?

i bent one of the driveshafts today doing barrel rolls and backflips off a big tree. it was easy enough to straighten out tho. if i keep getting nothing but problems with these ill get rid of them, but theyve already outlasted my stock driveshafts.

Hockeyplaya20³ · 07-05-2009, 10:34 PM

Quote:

Originally Posted by AK SNO RIDER

lol, what happened?

i bent one of the driveshafts today doing barrel rolls and backflips off a big tree. it was easy enough to straighten out tho. if i keep getting nothing but problems with these ill get rid of them, but theyve already outlasted my stock driveshafts.

haha
jumped 1ce, landed on right wheel, bent
jumper, landed on left wheel, looked like a boomerang LMBO!!
geting 1 replacement sent today
might just sell em...

littlejohn · 07-06-2009, 03:55 AM

Quote:

Originally Posted by REVO7

They don't tell you this stuff when you buy them, otherwise you would look at those nice new shiny Traxxas Steel CVD's and say no, I can't run those with my RPM A-Arms. You have done what a lot of have done and made the critical mistake of buying those Traxxas Steel CVD's and they pop out, right when you are having a good time. Best advice, take them off, put them on ebay and start running stock axles again like the rest of us. I personally don't think they can be used even without the RPM A-Arms, because a few years ago Traxxas widen the stance of there Nitro and Electric Revo's and never made the CVD's longer. When I had them, I looked high and low for a longer diff cup to solve the problem and it's not out there, Traxxas made one 1mm longer then the one's that come in the kit, but that was it. Cut bait and sell them and put the stock ones back on and you will be much happier, I was.

I run with those CVDs and have no probs. They do tell you taht you can only run them with #1 & #2 pushrods.. or did thaty say you can run them with #3 pushrods.
As for a warning about compatibility with RPM arms?? I don't think it is fait to lay blame on traxxas for that one. I think RPM are at fault here.

afterdarkgames · 07-06-2009, 04:49 AM

not really eithers fault as RPM made their arms to be compatible with STOCK components and Traxxas made their parts to work with Traxxas arms. Now when you start mixing things up you are bound to have something happen just like with perscription meds(some combos are leathal and some work better)

Pulse · 07-06-2009, 08:56 AM

Hello, I don't want to send a new thread for that I just broke my rear left driveshaft and would like to upgrade for something stronger on my e-revo. I already plan to mount RPM A-arms in the future so I need they fit together. Do you have any suggestion? Thanks!

AK SNO RIDER · 07-06-2009, 09:14 AM

well with how these steel driveshafts are working so far, i would say just get a stock, plastice replacement driveshaft and make sure your slipper is set right. unless i never have another problem with these steel driveshafts i wont be recommending them to anybody.

WRfromA · 07-06-2009, 09:33 AM

I have never had any problemoOn my car and I put the RPM arms ( front and rear ) and the Traxxas steel axles on when I got it new three month ago.

AK SNO RIDER · 07-06-2009, 03:39 PM

it seems like theres a 50/50 success/failure rate. some people have no problems, others do. i guess it just depends how you drive, and how your truck is set up.

Pulse · 07-07-2009, 02:26 PM

My truck is stock but I plan to install RPM A-arms -have them already-. I'm really interested in steel CVDs I wan't to run safe but if I can avoid the problem just by setting my slipper right then.. How do you do to set the slipper right?

Revo¹ · 07-07-2009, 09:00 PM

Trial and error, really....snug it down until the spring is fully collapsed, then back it off about 1/8 to 1/4 turn, testing each 1/32 of a turn to find the right setting for you, since not everyone's driving style, terrain, or truck are the exact same.