Spent £10 on idler gears- shall I get Robinsion Racing Upgrade?

[RCTT12]

I posted a thread about a week ago about my idler gears stripping. I replace the bearings and gears and it lasted for 3 runs. It started making a clicking noise, but still worked. It got worse then effected the performance a bit so I split the gearbox and found the idler gear was missing a tooth. I'm going to buy a new idler gear next monday, I might get the Robinson Racing hardened idler gear (http://www.ebay.com/itm/400307081900...84.m1423.l2648). But is the Robinson worth the money?
I checked also over my diff gear and found their was quite a bit of wear, up and down movement and side to side. I think that is the source of the problem and that's what made my bearings wear(in previous threads). Could the diff gear be all

Thanks

[rag6]

start with getting some AVID bearings. all of them...

i have never broke a trx steel idler in all the years i have been using them

[vchirinos]

It just happened to me again yesterday, that's two. My fault is that I use 3s on a tight slipper clutch. Okay rag6 , I will be opening it up and cleaning everything to make sure there's no debris. What would the correct diff lube be?

[rag6]

For inside the diff, I would use 1:1 wheel bearing grease.

I have used 3s, locked slippers, and basically beat the living snot out my idlers and have not had a problem, the 3 I own, have had for years. Either there is a quality control issue for the current steel gears, or there is misalignment because of loose or defective bearings, or the gearbox is warped, or worn at the bearing holders.

[Dr. Isotope]

Everything rag6 just said. My custom truck weighs 9lbs RTR runs on 3S/4S and a Tekin T8, and still uses the factory steel idler. I've never broken one.

[rag6]

doc beats the living ginger donkey pig snot out of his...

Just for future reference, how much is this robinson idler, and what is it made of?

[vchirinos]

FEATURES: Hardened aluminum

SPECS

Outer Diameter: 28mm (1.1")
Inner Diameter: 8mm (0.31")
Width: 9mm (0.35")

[rag6]

1.1" is much bigger than a traxxas idler. More like 14mm(just a guess) inner diameter cant possibly be right as it uses 5x11 bearings... Are those Tower's listed specs? They have been known to be useless at times...

[vchirinos]

Okay yeah youre right , im wrong . Part number is 7857 and its the hardened steel . I was looking at a crawler.