e-revo weakness diff

[squeeforever]

Originally Posted by Semi Pro

how so?

i had a 2.5 and i now have a platinum and they are the same

try losening the slipper alittle more and dont gun it or brake hard after landing a jump and they should hold up alot better

aluminum cases and the inner brace will help but the only other fix is the massively over priced FLM conversion

Originally Posted by JThiessen

I'll bite...how so? I've been buying the same parts since day one - haven't noticed anything different.

Originally Posted by JThiessen

I think Squee was correct, or maybe more that I was somewhat incorrect. The original 2.5R had an "I-Bar" set up in it. I dont recall my first one having that - but...one doesnt always recall everything! The 3.3 diffs are configured the same as the E-Revo, just some parts have an X designation, which may or may not mean something

Originally Posted by madmaxx

the e-diff's are different from the nitro diff's, the e-diff's use a spider gear support bar

proper shimming of the diff is necessary for both e-powered/nitro IMO

i run shimmed, alu diff's with Robinson R&P

Originally Posted by JThiessen

It appears you are correct - I had my pages mixed up, hence why I didn't recall seeing that support in there.

Looking at the exploded view, it appears that there is only one spider gear - is that correct?

Originally Posted by mistercrash

The diffs of the nitro Revo and the ERevo are different. The nitro uses the TRA5381 diff case. The ERevo uses the TRA3978 diff case that comes with metal blocks for the spider gears' pin and to accommodate for the TRA5382X metal block that go between the two spider gears. These metal parts are what is supposed to make the diffs stronger and the EREvo diff case is different from the nitro one so that the metal blocks fit in it. There are two spider gears in the diffs but for some reason the exploded view only shows one.

Correct...For the most part. If I'm not mistaken, that support bar is now in the newer model 3.3 as well as the E-Revo, Slayer, and the T-Maxx 3.3 and E-Maxx 3905.

They pretty much all have it now I believe, but the original 2.5R and the old 3.3 didn't.

[mistercrash]

If you go and check the exploded views of the T-Maxx Classic, the newer T-Maxx 3.3, the Revo #5308 and #5309, the Platinum Edition Revo and the Slayer, you won't see any of those metal parts in the diffs that are in the diffs of the electric Traxxas vehicles, E-Maxx, ERevo. But of course I can only refer to what I see on the exploded views of those vehicles as I don't have experience with all of them. But I'm pretty sure that those reinforced diffs were introduced only in the electric versions of the Revos and T-Maxxes.

[JThiessen]

Originally Posted by squeeforever

Correct...For the most part. If I'm not mistaken, that support bar is now in the newer model 3.3 as well as the E-Revo, Slayer, and the T-Maxx 3.3 and E-Maxx 3905.

They pretty much all have it now I believe, but the original 2.5R and the old 3.3 didn't.

I was looking at the exploded views on the Traxxas site earlier, and those dont show up on the 3.3 exploded views. If they are holding up better, not sure why one couldnt use them. I do have to say that since I went to the AL cups, I havent had any prob's with mine.

[madmaxx]

AFAIK the 5308 REVO does not use the support bar, it is only stock on the electric model's....

[squeeforever]

Originally Posted by mistercrash

If you go and check the exploded views of the T-Maxx Classic, the newer T-Maxx 3.3, the Revo #5308 and #5309, the Platinum Edition Revo and the Slayer, you won't see any of those metal parts in the diffs that are in the diffs of the electric Traxxas vehicles, E-Maxx, ERevo. But of course I can only refer to what I see on the exploded views of those vehicles as I don't have experience with all of them. But I'm pretty sure that those reinforced diffs were introduced only in the electric versions of the Revos and T-Maxxes.

Originally Posted by JThiessen

I was looking at the exploded views on the Traxxas site earlier, and those dont show up on the 3.3 exploded views. If they are holding up better, not sure why one couldnt use them. I do have to say that since I went to the AL cups, I havent had any prob's with mine.

My bad. I could have sworn I saw the nitro ones start to use them as well. Still, the E-Revo and Revo diffs are different. That was the original debate anyway.

[JThiessen]

Originally Posted by squeeforever

My bad. I could have sworn I saw the nitro ones start to use them as well. Still, the E-Revo and Revo diffs are different. That was the original debate anyway.

Warm beer comin' your way!!!

[mistercrash]

Originally Posted by squeeforever

My bad. I could have sworn I saw the nitro ones start to use them as well. Still, the E-Revo and Revo diffs are different. That was the original debate anyway.

It gets confusing because when the original 2.5 Revo was released, and the 2.5r and the 3.3, they all used the same diffs. The new Revo 5308, 5309 and Platinum edition also use those same diffs. The diff carrier for the nitro Revos, the Slayer and the 3.3 TMaxx is TRA5381. The electric version of the diff carrier used in the ERevo, EMaxx is TRA3978 and it comes with the metal spider gear braces. These braces will not fit in the TRA5381 diff carrier of the nitro vehicles. Here is a pic of the nitro diff carrier on the left and the ERevo diff carrier on the right. You can see the recesses in the ERevo diff carrier for the spider gear braces. Surprisingly, if you need to get the output gears TRA5382X, they are the same for both the nitro and the electric. It is basically the output gears used in the EMaxx and come with the center metal ''I bar''. Originally, the output gears part # was TRA5382. Apparently, this has been discontinued and replaced with the EMaxx TRA5382X that includes the I bar and can be used in both nitro and electric diff carriers.
Also when you look at the exploded view of an ERevo diff, it shows a drawing of the nitro Revo diff carrier even if it cannot be used with the ERevo's spider gear braces, that were originally released in the EMaxx

I'm stopping 'cause I'm starting to confuse myself.

I have to ask if you do standing back flips on a regular basis?