Make sure the front tensioner is tighter like 3/4 of the adjustment then set the tension with the rear, also if you slip the belt a bunch it will probably ruin the pulleys. Also use a dab of thread lock on the screws. Hope this helps, worked for me.

ok so I ended up pulling it apart and I readjusted the pulley tensioners. The belt didnt look like it was skipping.
As I was pulling the spur off, I noticed that I was missing the inner bushing that goes into the slipper hub was missing. i'm not sure how crucial that is, but i'm sure it needs to be there so I replaced that.

then after spinning the belt around to check for binding, I noticed my right rear wheel was not spinning. I look inside the outdrive and noticed my pin to my cva is GONE.

I thought those were pressed on by the factory or something, that shouldn't have came out.

I was going to test it out on the treat just now but looks like I gotta get to get a new cva dog bone.

maybe i'll get those shiny ones.

one thing for sure , it has better acceleration. I might go down a tooth in pinion.

I really want to get this thing balanced. I wonder how much success the guys running the saddle packs are having.

i've gone through everything you just described. My belt hasn't skipped since the washer went back in.

Bob, nice to see the switch to assocaited Just Joking. Everyone is talking about how bad the truck performs without sway bars. I think it depends on the driver, and there driving style. The first time I ran the truck, I didnt have sway bars and it performed well and was competitive. I would run the truck without them and see how it performs to you. If you feel the truck needs sway bars order them fast when they come in stock. Since everyone wants them they sell fast.

I think the truck feels great without swaybars, I run on a small-ish indoor clay and the truck feels great! Amazing, better than my completely clapped out losi! With the same tires, different wheels of course. And my losi is really fast and handles like a dream but this truck feels better to me all stock, ae 5000 in each diff, mmp, 1410 ect...

Well i just bought the sc10 4x4 and what is everybody running in the diffs and shock oils? I know i need to get swaybars... Do i need anything else?

Yea I agree, im running the stock setup and its works great.

It always happens on landings, without brake on, minimum throttle for landing. Clicker tight.

mine is stock no sway bars and i was able to drive it better than any of my other modified trucks. actually finished a heat and didnt tear anything up. great truck!!!!

just fyi the manual says if you are running the 19 tooth pulley you need to have the tensioner set down to one.

this makes the front wheels drive faster than the rear which can help pull it around.


I need to try the 20 tooth and see how much different it feels.

i tried the overdrive pulley yesterday at the track and didnt like it. made the truck feel twitchy and hard to drive...

I ran 4 more packs thru mine today, couldn't be happier! This thing is amazing on indoor! I was holding off 2wd buggies that were running 15/16 sec lap times, they were impressed and so was I. My fully modified losi felt like a pile after running this. I'm in love! Not sure what to do with the losi now lol, put about $300 worth of mods on it, wondering why now.

Front 2.0mm , Rear 2.0mm (high bite) or 1.5mm (loose surface)

I would trade for your losi if your interested. When the losi is set up right, it manhandles the sc10. I have alot of extras with my sc10 4x4 too.