new diff cup for new e-maxx

[killermmn]

do mike will have this cup??
ther are on the flm site!!

[TDC57]

Hay Killermmn..
Nothing was attached sir (??)

Mike has these FLM in stock thou..

http://www.rc-monster.com/proddetail...LM13010&cat=31
http://www.rc-monster.com/proddetail...LM44000&cat=31

Hope that helps..

Like your avatar..

[killermmn]

tdc on the site of flm are new cup for e-maxx 3905

http://www.fastlanemachine.com/Publi...9/Default.aspx

scroll down a little bit

[George16]

For that price, I'd rather buy a pair of new ofna 6 spyder diffs at $40 a pair shipped from ebay. Then buy mike's diff output shaft or make your own like I did. You'll need new spur and pinion though.

George16 - are those going to fit in the stock 3905 diff cases, or are you going to need another set of cases - Tmaxx??

The 16.8 diff cases are diff - they are smaller - they hug the ring gear, kinda like a revo diff.

[George16]

Originally Posted by Duster_360

George16 - are those going to fit in the stock 3905 diff cases, or are you going to need another set of cases - Tmaxx??

It won't fit the 3905 case so you have to buy another set of case .

I didn't think so - I run ofnas in my FLM E, SM, Pred and soon on my Lightning. A set of spares will be getting some new UE cases so I can run them on my old Tmaxx and not worry about diffs again (except for maintenance, lol).

Even with the cost of a set of cases, I think buying ofna diffs is a better deal all things considered.

[TDC57]

I've been using these diff on 6 & 8s and they are great, no issues at all in months..

http://www.rc-monster.com/proddetail...RO_DIFF&cat=47

[George16]

The ofnas are the same as the 6 and 8 spyder diffs that UE sells. It's cheaper than UE and Hot Bodies. It's as good as the hot bodies diffs. Tell me a good reason why I have to spend $60-$70 on one diff when I can buy 2 -3 for the same amount .

Are they going that cheap on Ebay?? I got most of mine from guy on UE forums and he was cheaper than UE, but not as cheap as that.

Like this one??

http://cgi.ebay.com/Ofna-HoBoa-Hyper...3286.m14.l1318

[George16]

Like this; http://cgi.ebay.com/Ofna-HoBao-Hyper...QQcmdZViewItem

The hyper 7/8/8.5 have a 43/13 diff ratio. The one you linked which is from a Hyper ST has a 43/10 ring to pinion tooth count.

George16, I'm not trying to be a pinhead, but neither of these come with pinions as neither ad shows or mentions pinions as included.

Both are 43t ring gears, so is there a difference? Is the ST 43t ring gear any diff than the 43t hyper 7/8/8.5? If there is a difference, I'd def like to know. I guess what I'm asking is the "crown gear" part number the same for both? I know 1:1 diffs it wouldn't be different, but just don't know the ins and outs of these well enough to know.

Thats an awesome price!!

Did a little checking online with manuals - they are not the same part numbers, so they are different even though they have same tooth count. Thanks for saving me from finding that out the hard way George16!!

One last ques - what does the 8 spyder diffs come in?? Haven't found those yet. Thanks!!

[George16]

Man, you want me to do all the searching for you ?


The difference between the ST and the 7/8/8.5 is the pinion gear teeth count. Like I said in my previous post, the hyper ST has 43T in the crown gear (which is the same as the 7/8/8.5) but the pinion only has 10T compared to the 13T on the 7/8/8.5 models' pinion. The diff ratio will be 4.3:1 (for a 43T crown gear divided by 10T pinion) for the Hyper ST while the Hyper 7/8/8.5 is 3.3:1 (43T crown gear divided by 13T pinion).

As for the 8 spyders, CFalco of RC-holics on ebay used to sell them. Here's a link to his ebay store. You can also email him and find out if he has some.

http://stores.ebay.com/RC-HOLICS/1-8...ERENTIALS.html

Just to add more confusion to you , I'm also using kyosho 6 spyders since they are cheap here in Japan.

Thanks!!

I understand all the gearing (ME degree), what I didn't realize was that a 43t ring gear designed for a 13t pinion was different than a 43t ring gear designed for a 10t pinion. They're different part numbers so they are different gears. I wouldn't have thought straight cut gears would be different, that a 43t ring gear was just that, a 43t ring gear. Nope, you have to know which pinion they were made for.

I have been running kyosho's in my HB Lightning buggy since the 1st time I serviced the diffs, so no, thats not confusing. I think these guys all get together a few times a year and share anyway.