Here's a stupid question

[El Pirata]

I have heard several people talk about using 1000wt gear oil in their diffs. Others talk about using 5000wt gear oil in their diffs. My LHS only have one kind of gear oil and it does not have a weight to it on the outside of the package. I noticed on RobH's thread about his diff that he had some 1000wt clear silicone. Is this the 1000wt gear oil? Where can I get some? What weight would be recommended to be almost like a limited slip diff as a result?

I loved the fact that the oil was clear because you'd see immediately when things start to grind as the oil would turn gray. Anyone?

 

[militarymaxx]

I currently have the following in my diffs: F-5000, C-7000, R-1000.
I have seen the weights all the way up to 110,000. The stuff is so thick at that level I don't see how they can call it a liquid. The stuff I have is made by mugen and I got it a my LHS. Not the franchise one, they didn't have squat for diff oils. Below is a link to Horizon and some of the diff oils they offer.

http://horizon.hobbyshopnow.com/ser...nCategory=ALL&strInManufacturer=ALL&tag=qsrch

 

[Çh®i§tiªñ]

The OFNA silicones that Military just linked to are what I use. A rather large bottle for the price (although its still expensive!) I guess someone has to pay for the viscosity testing hehe

3,000 - 7,000 - 10,000 and 1,000 are good weights to have

And 5,000

 

[El Pirata]

Now that that's cleared up what would be the heaviest weight to add to make it still slip but barely?

 

[FlyinRazorback]

Originally posted by El Pirata
Now that that's cleared up what would be the heaviest weight to add to make it still slip but barely?

Why? You want the diff to do it's job. The higher you go, the harder it will be to drive. Alot of the Kyosho drivers I run with go 3F, 7C, 1R. I'm my X5 I run 5F, 7C, 3R. My car has a little push going in to the corners but rips coming out.

 

[El Pirata]

I am talking about mostly off roading here similar to the Air locker I had in my old Jeep. Also what are those codes you used:

3F, 7C, 1R. I'm my X5 I run 5F, 7C, 3R.

 

[TwiZtiD25]

El I have been using 5000 in the front and 3000 in the rear in my Savage. That setup makes the truck very snappy during turns and off the line. Oh yeah thats also using the 4 gear spider setup in both the front and rear.FRONT REAR

 

[militarymaxx]

Seems like most of us buggy/MT guys are using anything from 1000 to 7000 and all in between. I wonder what the 110,000 stuff is for ? Maybe some of those 1/6 and 1/4 scale toys.

 

[FlyinRazorback]

Oh, sorry. That's 3,000 in the front (F), 7,000 in the center (C), and 1,000 in the rear (R).

The higher the number the thicker the oil. If you were to put 100,000 weight in a diff it will lock the diff for all intents and purposes. Basically you will make it a solid axle. If you want a buggy that handles like a MT then go for it.onder: