DEX410 Diff Oil.
 

I'm considering buying a DEX410, but have never owned a car with geared diffs, so can anyone recommend a trusted brand of diff oils. I've looked on the Durango website, but they only sell one weight.

Cheers.

the new car comes with a good starting point in terms of oils. So you should be sorted no matter what.

I think as long as you use the same manufacturers oils in both front and rear you should be fine. When you start using different make you may get some differences in weight.

I use either Associated or Ultimate, but never mix the two.

As Tel says mate. I use ultimate at the mo with no issues. :thumbsup:

Thanks,

Any advise on where I can by ultimate oils from, have done a quick google search, but nothing comes up?

MB models stock Ultimate diff oils which is what i use.

Their web address is www.mbmodels.net

Ask for Bally and mention you spoke to Craig. He will sort you out no probs.

Craig Collinson

Hi Craig,

Thanks for the reply and hope you can give me some more advise.

Seriously considering changing from a ball diff car to a geared diff car, the theory seems to make a lot of sense, especially with the way LiPo technology is ever increasing power through the transmission. I've not had any experience at all setting up geared diffs, in terms of which weight oil to use for which track. I've done some research using oOple and the Durango website, but have noticed that Durango do not sell diff oil, and the diff oils that other manufactures sell seem to have different measuring systems for the oils.

For example, the oil that comes with the DEX410 (2010 Spec) seems to be 100000 & 50000, but looking at Team Associated Diff Oils they are measured as follows:

1000cst
2000cst
3000cst
5000cst
7000cst
10000cst

I can't see the relation, unless the diff oil that comes with the DEX410 is very, very thick. I'm sure there's a perfectly simple answer?

My local club is Stotfold, so I've looked at the latest set up sheet, which seems to be yours on 04/07/2010. This states that your using 12500 diff oil in the front and 5000 in the rear. If I use the Team Associated diff oils as an example, they do not sell a 12500 weight, the maximum is 10000?

Also, would you mind giving me a brief explanation of how lighter and heavier oils affect the handling of the car, as when I purchase the car I'd like to order a reasonable range of diff oils to cover most set up scenarios.

One last thing, does the DEX410R come with the same diff oils as the DEX410 (2010 spec)?

Thanks for your help,
Joe.

Hi Joe,

i can understand your confusion about the diff oils.

From my understanding the Durango diff oils that come with the new kits should be 10k and 5k so not sure why they say 50k and 100k, that would be way too thick and im sure its not the case.

I always say you should decide on one brand then stick with that brand. That way you know exactly what your using and stops any confusion.

If Team Associated do not go any higher than 10k then i would choose another brand as you will defo need to use higher than 10k in the front. My prefered brand is the Ultimate stuff which is all ive used since i got my car.

In regards to how different weight oils effect the handling of your car is quite simple. For example if you ran a really light weight oil in the front then the diff would free to rotate quicker when entering a corner, therefore making the steering really responsive. If its really light in the front then the diff may actually diff out under power which would give you less steering on corner exit. The opposite is true when you go to a really thick oil in the front which basically slows everything down and numbs down the responsiveness and amount of steering you have entering a corner off power. When your on power you will have more steering as a thicker oil in the front makes the diff act more like a solid axle.

For the rear if you use a light oil you will have more rotation whilst turning which should give you more side bite. Thicker in the rear will reduce your turning radius giving less side bite but more forward traction.

Im not sure if the DEX410 comes with the same oils as the 'R' version.

Hope this helps.

Has anyone used a shockingly high oil like a 15000wt in the front and a low 5000wt in the rear and wot did they think of the effects of the car? contemplating trying it to tame down the frontend alittle

Thanks Craig,

That's very useful.

The only decesion left now is DEX410 or DEX410R. :thumbsup:

Hi Ice Mike,

do you mean 15k in the front or 150k?

If your saying 15k then this isnt shockingly high. I tend to use 15k on most tracks which does have the effect of calming the front end down, especially when entering a corner.

i meant 15k wt. I was jsut wondering about the idea of it. how do u tend to clean out the diff oil from the diffs to change them?? wot is the best way?

I take all the gears out and clean everything with a towel. i then go over the gears with a tooth brush to make sure there are not bits stuck in the gears.

Ive even tried 20k oil in the front diff whcih really calmed the front end down on corner entry. You will have more on power steering though.

Isn't the difference that some are measured in 'wt' and the other in 'sct', they're directly related but don't know by what ratio.

Dan

yup the new durango oil is in SCT i believe

Just found this, see if it clears up some questions ;)

http://www.rcrcr.com/index.php?optio...eral&Itemid=46