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-   -   Diff fluid (https://www.rcuniverse.com/forum/losi-monster-trucks-319/8745645-diff-fluid.html)

fountain 64 05-06-2009 12:10 PM

Diff fluid
 
I have an Aftershock with a new Losi 454 and I want to take the grease out of the diffs and put silicone fluid in them. What weight would work best in them, I don't race or hill climb.

Thanks, Randy

Sugafree 05-06-2009 03:03 PM

RE: Diff fluid
 
30K front and rear is a Good spot to Start for bashing....

bjhe333 05-06-2009 07:05 PM

RE: Diff fluid
 
sugafree Why run 30 weight instead of say 10k? Does the thicker oil make the diff work more like a "locker"? or does it just wear on the case less with thicker oil The reason is all I do is bash as well and I was about to replace the stock grease with traxxas 10 weight. Also, how much oil do you put in. Do you fill the case or just put in enough to lube the gears. Lastly is there a particular brand you recommend?

Sugafree 05-06-2009 08:15 PM

RE: Diff fluid
 
10K will be fine if that's what you got ;) (Lots of races use 10K) As far as Brands......I Like Ofna Diff-lock


Here's some thread to check out, Diff oil for bashing?

How to, Silicone diff fluid

How to rebuild and shim a LST2 diff

dacaur 05-06-2009 09:35 PM

RE: Diff fluid
 
I use 30,000 WT in my XXL. The difference between that and grease is like night and day, Before If I turned the wheels fully and hit full throttle, the front inside tire would immediately diff out and grow huge, Now with 30K oil doing the same thing it just goes and the tire doesn't diff out... I haven't tried 10k because I'm happy with the 30k, but I would say on a monster truck, you want to go thicker than you would on a truggy, since MT's don't steer well when you are going fast anyway, you don't have to worry about losing steering to the thick fluid....

MaddMatt 05-07-2009 10:23 AM

RE: Diff fluid
 
I have the Traxxas 10k in both my diffs, and it is still way better than the stocker grease. Go for it.. you'll be glad you did. My diffs are both totally filled with fluid. I havent had any trouble yet...

bjhe333 05-07-2009 10:25 AM

RE: Diff fluid
 
Great info guys thanks. I will probly get some 30k. I'll use the 10 k in my aftershock and the 30 in my lst. That way I at least don't waste the 10k. The aftershock is my backup truck.

dacaur 05-07-2009 09:59 PM

RE: Diff fluid
 
oh yea, as for how far to fill, you want to fill it so it just covers the cross pins in the diff... Don'T worry though, all that will happen if you fill it too full is it will squish out when you put it together... just do it over the sink....

bjhe333 05-08-2009 07:07 AM

RE: Diff fluid
 
I was wondering about that. I should get my new inner cases today. Put it together take it apart, put it together take it apart.[&o]

It is my back up maybe I'll wait till after the weekend.

ImpalaPolicePack 05-09-2009 09:45 PM

RE: Diff fluid
 
im tight on cash right now so i would like to know if i can use 10W-30 motor oil(for 1:1 cars) to fill my diffs ?

dacaur 05-09-2009 11:02 PM

RE: Diff fluid
 
no, its too thin. Plus, if it leaked, you would have oil all over... I would rather have silicon oil than motor oil in the back of my jeep/in my house/etc...

I mean, I guess you really could and it would be a little better than grease, but honestly, a bottle of diff oil is like $6.....

Fordtrucks96 05-10-2009 10:09 AM

RE: Diff fluid
 
I tore my rear diff apart, Cleaned it up spotless then JB welded the in side of the diff togeather. Let it dry a couple days then re installed it. Completely locked now and i love it.

bjhe333 05-12-2009 06:57 AM

RE: Diff fluid
 
I don't think I'll lock mine but I'm curious as to what part you JB weld to lock it? Any pictures?

full maxx 05-12-2009 03:44 PM

RE: Diff fluid
 
jb weld these four planitaries http://i211.photobucket.com/albums/b.../Capture-1.jpg

bjhe333 05-12-2009 03:49 PM

RE: Diff fluid
 
Oh.

full maxx 05-15-2009 04:09 PM

RE: Diff fluid
 
I got me some 30k yesterday and will change it out tomorrow after changing out a condensing unit (I love overtime)

full maxx 05-21-2009 06:55 PM

RE: Diff fluid
 
ok well I finally got to drive it today and it still seems to spin the front inside tire when coming out of a turn 30k front and rear

dacaur 05-21-2009 07:34 PM

RE: Diff fluid
 


ORIGINAL: full maxx

ok well I finally got to drive it today and it still seems to spin the front inside tire when coming out of a turn 30k front and rear

Well yea, you arent locking it, you are just turning it into a limited slip....When a tire lifts, Itwill still spin, but its nowhere near as bad as it was with grease in there. stiffening the suspension a littlewill help, and/or adding swaybars...

full maxx 05-21-2009 08:09 PM

RE: Diff fluid
 
swaybars installed already...not sure I want to lock it at least not permanent

dacaur 05-21-2009 09:06 PM

RE: Diff fluid
 
I wouldnt lock it. Locked diffs belong on rock crawlers. If you want to keep good handling, you need some diff action. If the tire didnt unload a little, you would just traction roll....

bjhe333 05-22-2009 10:11 AM

RE: Diff fluid
 
Ok is there anything heavier than 30 k? can you go to a 100 weight or would there be too much drag?

dacaur 05-22-2009 12:54 PM

RE: Diff fluid
 
no it wouldnt be too much drag, the gears in the diffs only move when you turn.

full maxx 05-22-2009 03:54 PM

RE: Diff fluid
 
I have seen 125,000

MidMichigan 06-03-2009 03:17 PM

RE: Diff fluid
 
Here is a link to 500,000. Anybody ever used this?????    Has to still be better than grease.

http://www.amainhobbies.com/product_info.php/cPath/1_167_297/products_id/6935/n/Kyosho-Silicone-Differential-Oil-(500%2C000wt)(40cc)

dacaur 06-03-2009 11:29 PM

RE: Diff fluid
 


ORIGINAL: MidMichigan

Here is a link to 500,000. Anybody ever used this????? Has to still be better than grease.
ANY oil is better than gease....


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