1/6 scale diffs

[bicketybam]

I'm rebuilding my Super Rock Rey and I figured I'd post some pics of the differentials for comparison purposes. This is the rear diff. It's worth noting that the 1/10 scale Rock Rey has a locked rear diff (no internal gears). The Super Rock Rey is open. I'm not sure what the stock fluid is because the manual doesn't tell you. It was pretty thick, around 500k would be my guess. I'm refilling with 1 mil. I am using a f/r diff from a Kraton for comparison.

 

[olds97_lss]

Neat! What's the plate behind the larger sun gears? Just a "shim" or is it concaved to provide mesh tension for the sun/spider gears?

I was surprised at the size of the ones on the 2.0 revo as well. The 20M diff "fluid" in the center is ridiculous. More like putty that you have to mash into the gears with your fingers. If I have them out again, I'll take some side by side photo's compared to the 1/8th and my nitro revo diffs.

 

[bicketybam]

Neat! What's the plate behind the larger sun gears? Just a "shim" or is it concaved to provide mesh tension for the sun/spider gears?

I was surprised at the size of the ones on the 2.0 revo as well. The 20M diff "fluid" in the center is ridiculous. More like putty that you have to mash into the gears with your fingers. If I have them out again, I'll take some side by side photo's compared to the 1/8th and my nitro revo diffs.

They are some sort of shim. Here is the diagram.

 

[LibertyMKiii]

Those are some beefy gears. Looks from pictures to be more beefy that the XMaxx 8s gears. (which broke constantly)

 

[SarsK9]

@bicketybam Are you on your original diff? I’ve been eyeing the SBR but was seeing a lot about the rear diff shredding teeth and kinda was off put on such an expensive truck.

 

[Clubin]

Xmaxx is even larger! And not totally but very close to indestructible.

Great pix!

 

[bicketybam]

@bicketybam Are you on your original diff? I’ve been eyeing the SBR but was seeing a lot about the rear diff shredding teeth and kinda was off put on such an expensive truck.

Stock diffs. I honestly can't see these breaking, especially after what I've already put them through. Do you know if the SBR and the SRR use the same rear diff?

 

[2fast4u]

They are some sort of shim. Here is the diagram.

View attachment 48229

Those appear to be clutches.

 

[SarsK9]

Stock diffs. I honestly can't see these breaking, especially after what I've already put them through. Do you know if the SBR and the SRR use the same rear diff?

Tbh I just assumed they did but I haven’t looked into deeply yet. Waiting until Christmas is over (3 kids are expensive lol) until I start to seriously look into my next purchase. I know there’s a few videos on it. I’ll look into it though and share what I find.
I was mistaken, it’s actually the center diff that has some issues. Been problems with the teeth literally shredding off one of the gears in both the sbr and srr. Something to do with the metal quality or lack off. Not sure if there’s a better replacement yet. Some videos on YouTube about it.

 

[olds97_lss]

Those appear to be clutches.

Yeah, kind of looks like a 1:1 clutch pack in a LSD/posi diff.

 

[bicketybam]

Tbh I just assumed they did but I haven’t looked into deeply yet. Waiting until Christmas is over (3 kids are expensive lol) until I start to seriously look into my next purchase. I know there’s a few videos on it. I’ll look into it though and share what I find.
I was mistaken, it’s actually the center diff that has some issues. Been problems with the teeth literally shredding off one of the gears in both the sbr and srr. Something to do with the metal quality or lack off. Not sure if there’s a better replacement yet. Some videos on YouTube about it.

If these teeth are shredding, then there must be something majorly wrong ?

 

[SarsK9]

If these teeth are shredding, then there must be something majorly wrong ?

View attachment 48264

granted who knows what wasn’t recorded but if that was his maiden or second run and nothing else happens he either got a seriously Faulty part or there is an actual issue with the metals used For the gears

 

[jondilly1974]

granted who knows what wasn’t recorded but if that was his maiden or second run and nothing else happens he either got a seriously Faulty part or there is an actual issue with the metals used For the gears

Gotta be a lemon. Every mfg has one now and then.

 

[SarsK9]

Gotta be a lemon. Every mfg has one now and then.

Absolutely true, but it still blows my mind that those teeth were shredding off like nothing

 

[slick2500]

This honestly doesn't surprise me that they are that much bigger than the Arrma 1/8th diffs. The Arrma 1/8 diffs are tiny even compared to other 1/8 diffs. Other 1/8 diffs have bigger everything in general.

 

[Jimbobjr]

Those are some beefy gears. Looks from pictures to be more beefy that the XMaxx 8s gears. (which broke constantly)

Xmaxx is even larger! And not totally but very close to indestructible.

Great pix!

So which is it?

 

[LibertyMKiii]

So which is it?

I broke both the original 8s diff gear as well as the upgraded spiral gears and never did serious bashing. (even tried some aftermarket ones that claimed to be better metal)
The hit of 8s power seemed to be too much for it.

I did hit 74mph, which was impressive for that hefty brick!

-Liberty

 

[Evil-T]

The E Revo 2.0 diffs are good!

And that’s based on most think it’s a 1/8 and in all honesty it is but Traxxas class it as a 1/10.

1/10 Revo 2.0 on left 1/8 Typhon on right!

^ the Revo is sitting on an inverted diff cup it’s doesn’t hold double the volume.

 

[Jimbobjr]

Typhon is 3 1/2lbs lighter and 120$ cheaper than the erevo...

 

[Evil-T]

Typhon is 3 1/2lbs lighter and 120$ cheaper than the erevo...

Wasn’t a price comparison more a laugh at how Traxxas class it as a 1/10.

OP was comparing it to a SRR and as far as I’m aware wasn’t one Vs the other more a comparison and as for the SRR here in the U.K is a $472 premium over the Typhon

Not getting into a Traxxas Vs Arrma debate I have both and ignoring Traxxas business practices which I don’t agree with the Revo is a great RC IMO and even for the price point does have a few positives over the Typhon.
But in all honestly I do prefer my Typhon.