Changing driveshafts to steel ones

[freddy_ventura]

Hi guys im going to change the stock driveshafts to the steel ones the stock ones are always braking.
What i would like to know is where is going to be transfered the weakpoint and if i need to upgrade anything else ????

[steveski4]

I am running traxxas steel CVDs and didn't change anything else. No problems.

[AnthonyV]

I've got a problem with them popping out on occasion. Usually when the car flips. I have heard the RPM arms solve this issue though.

[MfizzleS62]

make sure you get the extended rear cups they help a lot..

[hottrodd1090]

if i were you i would use the ones out of a summit or mips.those are not ment for the erevo with the mamba monster.i had them and the center drive shafts and i have replaced them all now

[chapinb]

The driveshafts are still the weakpoint.
Get the summit shafts. They are as strong, cheaper, wont bend and there is no issues them them popping out.
Your next weakest link is the ring/pinion gear.

[AnthonyV]

I have broken 2 of the ends off the dogbones so far. It was an easy fix though as I simply just pressed in a new pin and cut to the proper length. I have also had issues with them bending... which does not help matters. I can usually bend them back pretty straight but they are never 100% true in my opinion. I'm assuming these 2 issues only happen when the CVD's pop out and go unnoticed when running.

Have you guys actually compared the Traxxas Steel driveshafts to the Summit ones? I'm really sick of the CVD's popping out but before I convert anything I'm going to try the extended cups (Traxxas 5153r). Are there any problems with running these (5153r) without the extended wheelbase suspension arms (#5333R)? I've read mixed reviews about running them with the stock a-arms: http://traxxas.com/forums/showthread...ner-cups-5153R

[freddy_ventura]

I have robinson pinion and spur

[anr2442]

I have robinson pinion and spur

I think chapinb meant your differential pinion and ring gear.

[Brewers74]

I swapped a guys stock one out this weekend for the traxxas steel ones above in the pic...two laps around the track the front kept popping out so we dropped his suspension still no luck.He ended up breaking the pins on the end of the dog bone. I had a set of the summit axles spare we swapped to them ended up abusing truck rest of the day with no trouble

[AnthonyV]

As I mentioned, I've broken 2 pins sofar off the end of the dog bone. I ended up using the suspension pins (Traxxas 5321) to replace the broken ones. They are .010" larger in diameter. They will go into the stock pin bore with no problem though if you add a bit of PB blaster/WD 40. I use a vice then just hammer the rest in then cut to proper length. Now you will notice they will not fit into the cups. You have 2 options, you can use a dremel to remove a bit of the diameter of the pin or you can simply remove .005" from both slots on the cups. This gives you a larger diameter pin so they have a bit more strength to help against them shearing off.

I am honestly considering swapping to the summit axles though... I do not like the fact that the steel axles are a bit bent which is not good for the differentials and other rotating assembly components. Especially when going 60+mph. Do you think you'll see any kind of top speed difference between the steel driveshafts compared to the summits?

Would these be all I need to convert?
http://www.ebay.com/itm/4-NEW-5607-T...item1c25ee7824

I noticed that you need 2) 5656, 4)5654, and 4)5653 to convert. It looks like the link above has everything...

What kind of problems have you guys had with Summit axles? I'm sure they can't be 100% perfect...

[hottrodd1090]

summit or MIP axles are the way to go i.ve have used all and those are the best

[chapinb]

The summit axles do have a few (minor) problems.
The pins do come out on a rare occasion if not checked. Just takes either a dab of locktite or some shrink wrap around the outside and they stay fine.
As the shafts wear, the pins make an oval shape in the plastic, this will eventually break loose. You usually can see when its coming though.

While the shafts are slightly more than stock, they are well worth it. They are also easily rebuildable without any e-clips!

[Mark94]

I bought my car used with Summit axles on the front. Rear axles are stock and look like they are starting to wear and may need to be replaced in a little while.

I've read that the summit axles have two different lengths and we need to go with the shorter ones. Assuming that I would also need the shorter axels for the rear of the e-revo, is it possible to buy only two axles and how would I know if I'm getting the correct length axles?

Thanks for any help!
Mark

[Ray00Ray]

Once you swapp out to the steel drive shafts, your new weak points are your differentials - and thats not a guess. After I kept busting diffs on steel drive shafts I went Summit axels and I have not replaced um since even though I have a backup set of 4 just in case.

DONT USE UM FOR BASHING. I only use steel drive shafts for speed runs in my Streeter with slipper set to what i like to call ultimate sweet spot.

[Mark94]

Aren't the summit axles different lengths? Which sizes do you use for the E-Revo? Do we use the shorter ones all the way around?

[randy0050]

I've got a problem with them popping out on occasion. Usually when the car flips. I have heard the RPM arms solve this issue though.

mip makes a steel shaft with a slip and spline vs. the dogbone style . MIP 08135 check it out !

[Ray00Ray]

Aren't the summit axles different lengths? Which sizes do you use for the E-Revo? Do we use the shorter ones all the way around?

No you use the long ones all the way around! With the short ones you have to stretch the boots!

[LaTuFu]

The summit has a short axle due to the diff locks, so there is a short one in the front and rear.

You can run 4 long shafts on the Revo, but running a set of short ones doesn't affect the truck.

[AnthonyV]

So.... which ones are short and which ones are long in the summit?

[87 GN]

in a full set you get two long & two short. Put the short in the rear & the long in the front.

on the Summit they use one long & one short on the front & the same on the rear..

your link is the correct shafts......

[Mark94]

I have the Summit axles in the front and my stock shafts in the rear look like the pins are getting ready to rip through the yolks so they will need to be replaced soon. I ordered the MIP axles for both the front and rear so hopefully I'll have good luck with those and will no longer need to deal with the yolks and replacing ripped boots. Since I was ordering the MIP set for the rear, figured I would get an additional set in case the Summit axles decide to give.

[helicraze]

How long does it take to swap all 4 out? Are the stock ones gonna break on 6S lipo? What is the part number or link for the summit ones and do they fit straight in?

[Black Adder]

I just got my 5608 a couple of weeks back and I took it out for some jumps. Nothing big - 10-15 footers. One or two landings we not 'picture perfect' but what ended my day was a sweet jump that I didn't even need to apply brake to. It sailed level all the way down and when it hit I knew something was very wrong. Turns out (I was hoping for a broken drive shaft since I had not upgraded them yet. When I opened it up it turned out to be the differential out-drive gear snapped off and part of it was still inside the drive shaft (gear part #5382).

I heard so many idea about bullet proofing the diffs but I'm a guy with a short attention span. ADD, AHDD, OCD, DDT, OPP, I have it all. But don't worry, the doc, the Prozac and me, were working it out.

I have read so many ideas. I can wrench, no problemo. What should I do to make these diffs as strong as possible. I mean it was such a flat, relatively soft landing that now I'm afraid to push it. I installed the CVD axles but not the drive shafts yet. But those diffs. Should I go for the Losi LST2s? I have a Losi LST2 Electric conversion and it cannot be broken (yet). Which drive shafts?

Sorry if much of this is a repost but I am desperate so please excuse the verbosity.

Can someone provide me with a parts list or idea of how to bullet proof these diffs? They say the Losi LST2 diffs fit with some modification, ok, I'm not afraid of no ghosts, but PLEASE HELP! I do not want to try this and try that. You guys are experts and some of the work I've seen is amazing.

Brother can you spare to drop a dime? Thanks so much. This is the best forum I have ever been on.

-Black

[87 GN]

http://traxxas.com/forums/showthread...rsion-Question

[Black Adder]

Here is my last question on this. I have a Losi Lst1. Is the diffs the same as the Lst2? Anything else I can use of the LST1??


Thanks, Blackie

[anr2442]

If they are the same losi CVDs that the lst2 and 8ight (8mm stub axle) use then those are the wonderful axles for the erevo. You just have to make them fit with some shimming.