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  • RCSC

Traxxas Slash 2WD Diff Lock

Landcruiser 110

Quarry Creeper
Joined
Jan 18, 2011
Messages
207
Location
Australia
hey guys was wondering how you guy have locked your 2wd slash diffs, ive googled it looking for parts but come u with nothing, hope you guys can help me out, thanks"thumbsup""thumbsup"
 
why are you wanting it locked? A heavier diff oil can help with diffing out if you are having problems
 
to get better control of the car when in the dirt and to get it to hold its line better, so what weight oil do i need, or is ther a strait diff lock i am able to put in it, thanks for your help
 
to get better control of the car when in the dirt and to get it to hold its line better, so what weight oil do i need, or is ther a strait diff lock i am able to put in it, thanks for your help

Putting in a locked diff will not help anything in that truck. If you are really having problems, I would start with some 30,000 diff oil. That is really heavy, but if you need heavier you could go 50,000. The associated oil is usually the cheapest.

Your diff may just be empty of oil. Start out with some 30,000. I run 30,000 in my sc10 when I am running big 1/8 scale tracks and I have a ton of power that needs a gear diff
 
oh ok, i read on another forum that a guy did a homemade dif flock and said that his handled better, i am aslo running a 7800kv 12T brushless in my slash aswell, so it goes pretty hard and i would like it to slide and be controllable rather than just constantly spinning around in circles
 
I JB welded mine last weekend, and destroyed the stock plastic shafts within 5 minutes. I got some MIP X-Duty shafts and installed them, but I don't think I'm going to run it like that just because I don't want to wreck parts, especially 50 dollar shafts. I ordered up some Bad Horsie diff lock grease and going to put it in a new diff. It should be tight enough to prevent diffing most of the time, but still alleviate some of the stress associated with a locked diff or spool. I'll post up again when I know how it performs.

EDIT:

Also, the locked diff did have some negative affects in handling, being that it liked to roll over if there was traction and too much throttle. It requires a lot more throttle control than with the open diff.
 
that much power with a locked diff will not drive any better than your current empty diff. It won't turn unless the back end is out
 
I filled my diff with a moly based engine assembly grease (its what I had lying around). Pretty thick stuff. Mine seems to act like a locked diff in anything loose (dirt, sand, etc) but on rubber tracks, concrete and high grip surfaces it drives like a limited slip. Sound like what you are looking for? I have the stock VXL system in mine.
 
I filled my diff with a moly based engine assembly grease (its what I had lying around). Pretty thick stuff. Mine seems to act like a locked diff in anything loose (dirt, sand, etc) but on rubber tracks, concrete and high grip surfaces it drives like a limited slip. Sound like what you are looking for? I have the stock VXL system in mine.

Same here. Grease. The fluid is almost impossible to keep from leaking, the stock diff is not sealed very well and very hard to get sealed. It's not designed for fluids.

I'm with a few of the above posters about not-locking, but I race, I don't bash.
 
I liked the locked diff in my Slash. Made it more fun to slide corners and it also worked great in the sand, but you have to drive it different.
I used JB Weld in the diff.

Did you use the stock plastic shafts or did you upgrade to something stronger? I would simply run my JB welded diff with my MIP's, but both sets of X-Duty shafts (SCX10 and Slash) have been packaged with the wrong parts/count, and I don't want to deal with MIP any more than I have to at this point (meaning not breaking parts).
 
Did you use the stock plastic shafts or did you upgrade to something stronger? I would simply run my JB welded diff with my MIP's, but both sets of X-Duty shafts (SCX10 and Slash) have been packaged with the wrong parts/count, and I don't want to deal with MIP any more than I have to at this point (meaning not breaking parts).
I used the Traxxas steel yokes and the plastic shafts.

One disclaimer, I never ran a brushless system in it. I only ran brushed motors like 16T on 3S or an 11T Holmes Handwound on 9.6V for the sand.
 
I used the Traxxas steel yokes and the plastic shafts.

One disclaimer, I never ran a brushless system in it. I only ran brushed motors like 16T on 3S or an 11T Holmes Handwound on 9.6V for the sand.

Yeah, I've just got the stock VXL and snapped one on 2s... Inspecting them after I removed them, they were twisted all over, both male and female ends, the ears were no longer straight, and every single hole was wallowed out. I wish Traxxas would get off the plastic shaft jag they've been on forever. Their VXL and nitro models should come with something more substantial out of the box.
 
Last edited:
Yeah, I've just got the stock VXL and snapped one on 2s... Inspecting them after I removed them, they were twisted all over, both male and female ends, the ears were no longer straight, and every single hole was wallowed out. I wish Traxxas would get off the plastic shaft jag they've been on forever. Their VXL and nitro models should come with something more substantial out of the box.
Agreed. That's one are where they are cutting corners and it shows.
 
Just got done running the truck after installing the new diff and Bad Horsie diff lock grease, and I'm not totally pleased with the results. At first, when I first filled the diff I was happy to feel how tight it was just by turning the outdrives by hand. Once I got the entire truck back together with the wheels and tires on, it was still pretty tight, but after just one pack (5300mah 2s), it has loosened up quite a bit. So far for 10 bucks and how little amount of grease you get, I'm not too happy, but I may not have packed enough in there (possible gaps with air in there). I'm going to try stuffing it as full as I can and see if it works any better.

Another note, does anyone have any experience with silly putty? Is there any give in that setup? I figure it will probably be better than any "grease", but don't want to cause undue stress on other parts.
 
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