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Old 03-25-2021, 09:39 PM   #1
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Default TRX 4 Chassis New Build

Well I finally opened the box and got the manual out to read it first.
Page 4 Transmission;
Looking at post here and some RTR's; Bearing grease?
I am not to fond of hearing that some parts have had little to no grease.

Can the bearing seals be removed to add grease into them?
I got a tub of Vanquish HP Synthetic grease but now I am wondering if
marine grease would be better as some of you have posted?
If marine grease any brand better?
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Old 03-26-2021, 07:22 AM   #2
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Default Re: TRX 4 Chassis New Build

I use red and tacky from Lucas on my rigs. I don't drive through water though. Works really good after inspections

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Old 03-26-2021, 08:33 AM   #3
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Default Re: TRX 4 Chassis New Build

The bearings can be opened, though they are greased fine from the factory. They are well sealed too, took mine apart a while ago and they were perfectly clean inside. I wouldn't worry about them.

I use Red and Tacky as well, just a light coat on all gear mating surfaces. Almost any grease will do really, something thicker is better as it doesn't get flung off as easily. The green TRX grease that comes with the kit isn't bad at all to be honest.
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Old 03-26-2021, 07:45 PM   #4
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Default Re: TRX 4 Chassis New Build

Thanks

Just trying to figure out if there are any weak spots while building this chassis kit, Kind of do it now rather then later. Figured if they could be unsealed then packed with grease, it would at least get the bearings to last longer.
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Old 03-26-2021, 07:52 PM   #5
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Default Re: TRX 4 Chassis New Build

X3 on Red N Tacky. It stays on he gears pretty good unlike some other grease Iíve used.




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Old 04-01-2021, 10:49 PM   #6
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Default Re: TRX 4 Chassis New Build

I have a question
On the trx4 transmission has anyone had a problem with the plastic housing?
is it worth upgrading to a Aluminum case?
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Old 04-01-2021, 11:33 PM   #7
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Default Re: TRX 4 Chassis New Build

Quote:
Originally Posted by Bill F View Post
I have a question
On the trx4 transmission has anyone had a problem with the plastic housing?
is it worth upgrading to a Aluminum case?

No, just build it and drive it.




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Old 04-03-2021, 11:25 AM   #8
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Quote:
Originally Posted by Bill F View Post
I have a question
On the trx4 transmission has anyone had a problem with the plastic housing?
is it worth upgrading to a Aluminium case?
if you worried about it, buy a Transfer Case Guard to fit to the bottom of the transfer Case

amainhobbies sell them
https://www.amainhobbies.com/rc4wd-c...vc0471/p765903

Last edited by BREL; 04-03-2021 at 11:30 AM.
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Old 04-04-2021, 05:57 AM   #9
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Quote:
Originally Posted by BREL View Post
if you worried about it, buy a Transfer Case Guard to fit to the bottom of the transfer Case

amainhobbies sell them
https://www.amainhobbies.com/rc4wd-c...vc0471/p765903



That's extremely overpriced. You can get something similar that will do the same job for less than $10. There's plenty if you look around
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Old 04-05-2021, 12:33 AM   #10
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Default Re: TRX 4 Chassis New Build

I was just wondering if there were any problems that's all.
That optima in my avatar when I got the new rear trany case I had to use auto silicon sealer when mating that cases together as they were kind of warped??
Just thought maybe I might have to do the same thing on the trx4
I guess that would not hurt none here keeping water out is a good thing I think.
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Old 04-05-2021, 10:01 AM   #11
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Default Re: TRX 4 Chassis New Build

The only aluminum upgrade I made in the trans motor area was an aluminum motor/trans mount.

RZXYL Aluminum Alloy Motor Mount Heat Sink for Traxxas TRX4 RC Crawler Car Upgrades Parts (Black) https://www.amazon.com/dp/B081YHY796...ing=UTF8&psc=1

With the plastic stock motor mount, my motor moved a lot when mounted to the trans.

This supports it very well. The motor is rock solid.

I bought a GRC originally and that was $$$$$ compared to the one I linked. I picked up the amazon one as a spare. Theyíre identical.
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Old 04-05-2021, 07:10 PM   #12
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Default Re: TRX 4 Chassis New Build

Kind of funny how that is!

I picked up the amazon one as a spare. Theyíre identical.

Chinese knock off's ? But if the brand name is made in china? Who knows where to knock off part was made at in china? Same MFG. plant ?

I think I will get one, Thanks
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Old 04-08-2021, 12:26 AM   #13
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Default Re: TRX 4 Chassis New Build

If I may I have a question
On the transmission build when you are done on the spur gear is there normally about a quarter turn of free play (spin) ?

Then there is an optional part listed, "Traxxas 8249 Slipper eliminator plate"
is this a better setup? No slipper clutch?
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Old 04-08-2021, 05:03 AM   #14
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Default Re: TRX 4 Chassis New Build

Quote:
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If I may I have a question
On the transmission build when you are done on the spur gear is there normally about a quarter turn of free play (spin) ?

Then there is an optional part listed, "Traxxas 8249 Slipper eliminator plate"
is this a better setup? No slipper clutch?
In regards to the slipper eliminator, I wouldn't bother. Just tighten up the nut on the clutch. Mine is nipped up and doesn't slip at all.
Just be wary that if you are driving and get a wheel jammed in rocks etc, don't try to force it to drive or other parts will get damaged seen as the clutch can no longer slip. The stock motor delivers a lot of torque.
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Old 04-08-2021, 08:32 PM   #15
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Default Re: TRX 4 Chassis New Build

The 1/4 turn in the transmission is normal. This allows the gears sufficient play to allow for shifting.
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Old 04-08-2021, 08:55 PM   #16
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Default Re: TRX 4 Chassis New Build

Thanks
I googled this and it came up as you said Inspector86

I thought I did something wrong in the assembly of it to get it so loos
All I could think of is how could the make a loos goose trany? You had to of messed up somewhere.
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Old 04-10-2021, 01:21 PM   #17
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Default Re: TRX 4 Chassis New Build

Well the Goody bags all got here

I know, I know, Just shut up and build the thing!

Temptation ?? Who can resist? All the new cool parts and all that.

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I got two bodies both axial, the jeep Cherokee and the chevy pickup
I am going with the Cherokee for my first build
as for staying stock and me wanting to just get one rock crawler and not have to mod nothing! Well
that went out the door from reading the post here! So it is all your fault ;)

Instead of brass weights I went with yeah axle kit with the skid plates and the aluminum parts for the axles
An aluminum motor mount? and the v-8 engine cover with fan
The rest of the parts are for the body, not sure what else I will need? But a good light kit I do need to get!

Been kind of busy trying to clean up around here from the Ice storm we had! So SO many branches and trees have fallen here it would take a long time to clear everything by hand, So thing are slow in my build.

Then I have the Wife's flower seeds to plant and germinate so she can have flower pots that the chipmunks can dig
up to make her mad! Then turn and with blazing eye's say Can't you do something about them dam things!
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Old 04-13-2021, 12:15 AM   #18
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Default Re: TRX 4 Chassis New Build

Ok I got a problem on my build
I got a savox steering servo a SA-1230SA
one it does not line up with the install holes length wise
second the wire to the receiver is short by about8 inches!
Do I get an extension cable? or get an extension cable an cut and solder them
then use heat shrink to seal the soldered wires?

Next were do or can I mount the castle Mamba X ESC?
or just find a spot where it will fit?
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Old 04-13-2021, 04:40 AM   #19
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Quote:
Originally Posted by Bill F View Post
Ok I got a problem on my build
I got a savox steering servo a SA-1230SA
one it does not line up with the install holes length wise
second the wire to the receiver is short by about8 inches!
Do I get an extension cable? or get an extension cable an cut and solder them
then use heat shrink to seal the soldered wires?

Next were do or can I mount the castle Mamba X ESC?
or just find a spot where it will fit?
**edit: mine are SA 1230SG's
I've got the same savox servo fitted to both a standard trx4 and also one with a lift kit and the modified servo mount that comes with the kit.
They do fit, just needs a bit of tweaking.
From memory, I didn't use the bolts which came with the servo, seemed soft and started to strip the head easily.

The standard trx4 was fairly simple, just need to get all 4 screws started in the holes before attempting to screw them in fully. Help them to pull straight and they will work.
Sometimes it helps to trim a bit of plastic off of the servo but this will void the warranty.
The trx4 with the lift kit took quite a bit of messing as I altered the mount to provide more clearance for the axle under suspension compression.

Regarding the wires, I just bought an extension lead. I think it was 7 inches. The plug in type are easier, no soldering required.

Last edited by JonnyUK; 04-13-2021 at 04:45 AM.
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Old 04-13-2021, 08:30 AM   #20
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Default TRX 4 Chassis New Build

Quote:
Originally Posted by Bill F View Post
Ok I got a problem on my build
I got a savox steering servo a SA-1230SA
one it does not line up with the install holes length wise
second the wire to the receiver is short by about8 inches!
Do I get an extension cable? or get an extension cable an cut and solder them
then use heat shrink to seal the soldered wires?

Next were do or can I mount the castle Mamba X ESC?
or just find a spot where it will fit?

Iíve had to file out the passenger side mounting holes of both aftermarket servos so far. I ďthinkĒ this is what you are referring to.



I

I then screwed it in using the stock holes in the servo mount. Iíve had no issues. A common occurrence I believe.

Iím pretty sure Savox servos require an extension.

I put the mamba x on the drivers side slider. Itís where the stock esc was.


Last edited by Benp; 04-13-2021 at 10:03 AM.
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