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smkynutz

smkynutz

RCTalk Qualifier
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Location
Transfer, PA
RC Driving Style
  1. Bashing
Hey, wondering how to tighten up the limited slip in the rear end. I don't want to lock it completely, just tighten it up so it slides a in the corners at high speed. right now it just kinda pulls on the front and shoves due to the inside wheel spinning faster than the out side wheel. Now if the outside wheel would spin than it would drift more through the corners, meaning higher rpms, meaning faster outta the corners...Would I just change the weight of the oil in the diff, or is there an adjustment screw or shim some where I'm not knowing of? And don't want to get the locker, because some limited slip is good for holeshot purposes...
 
the diffs on the revo are sealed, which means you can fill them with oil. the thicker the oil the more "locked" you will get without being totally locked. i ran 50k in my savage basher and liked it a lot. i could turn one wheel by hand and it would turn the drivetrain instead of "diffing out"

the only ones that are adjustable with a screw, are some of the 2wd stadium trucks with ball diffs.
 
Hey Thanx Beason. I got some 50k diff oil today. I'll let ya know how i like it
 
I know this sounds weird but regular old sill putty work great in the rear diff.
 
Changing the roll center and increasing positive caster will also help eliminate "pushing" the corners.
 
Last edited:
sillyguy110 said:
I know this sounds weird but regular old sill putty work great in the rear diff.
Click to expand...

That's more of a diff locking method for those that don't want it permanent. It works, but heavy oil works well too.

I run 50K in all my rigs (savage, aftershock, jato) and really like it in general.
 
the diff is many parts. what happened? you can find whole diffs on ebay, but i dont think tower or anyone sells complete diffs.
 
I was just trying to see if the diff in the revo is the say as the slayer. Nothing happened yet, but I wanted to know if I could do the silicone oil lock as described above

I can't even find a diff exploded view on TRX
 
most all diffs are sealed, unless they are a ball diff, you can fill them with oil. the slayer should have a very similar if not the same diff.
 
even if they are not the same, you can still fill them with oil. the only difference i can think of is they may have different size ring or pinion since the slayer runs smaller tires.
 
The slayer and revo diffs are the same. Part numbers for the slayer match part numbers for the 3.3 revo. Both can run oil as both are sealed.

The older t-maxx diffs were not sealed (2.5 and older). I think the newer ones are though, now that they run "revo spec" diffs.
 
Well the 50k oil made a huge difference. Now its pulling the front end off the ground to a wheelie instead of fish tailing as i had hoped. This is my first nitro truck and this thing is freakin insane! I can beat 1:1 cars driving along my front yard, and they are moving when i start from a stand still...You should see their faces when a lil r/c truck flies by!!! Well now I'm wondering if i should put the 50k oil up front to help the outside tire keep spinnin, (if it is on the ground)amd help push it around...gonna give it a shot this week, prolly test this weekend...
 
50k in the front will kill your steering. you should go lighter in the front. like 30 or 20k
 
beason said:
50k in the front will kill your steering. you should go lighter in the front. like 30 or 20k
Click to expand...

wow, I was just about to put 50k in front and rear diffs. I've had others tell me to put 50k in both. why will this kill my steering?
 
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Depends on the rig I think... then again, I'm a basher. I run 50K in mine front/rear on my savage and aftershock. I like the power at all 4 wheels in case I get high centered on something.

For a racer, lighter oil in the front lets the tires diff out a bit more so it will turn more aggressively. Heavier oil makes them want to go the same speed more (inside tire should be allowed turn slower for better steering) which makes it want to go straight.
 
olds97_lss said:
Depends on the rig I think... then again, I'm a basher. I run 50K in mine front/rear on my savage and aftershock. I like the power at all 4 wheels in case I get high centered on something.

For a racer, lighter oil in the front lets the tires diff out a bit more so it will turn more aggressively. Heavier oil makes them want to go the same speed more (inside tire should be allowed turn slower for better steering) which makes it want to go straight.
Click to expand...

Well, I'm setting up the revo for racing. So, I should go with 30k or so in front? I guess that does make sense. It would steer tighter and help pull out of a drift. I think......right?
 

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