Slash 2wd

The Traxxas Slash is the original and best short course truck out there but there is always some tweaking that can be done to improve its reliability and handling.

This is the Slash 4x4 steering kit. We greased the bushings and apply an extra large washer in case the spring loaded assembly blows apart during a race. The washer should theoretically catch it and prevent a total loss in steering. 

The arrow points to the excessive grease used to hopefully keep the bushing free of dirt. The orange outline on the right shows the washer being larger than the steering plastic.

First thing i would do is get this gear cover so your spur gear stops wearing out so fast.  A bead of silicone is optional, dust particles still get in.

This is a simple fix for the rear bumper screws falling out. Dubro sells really long socket head cap screws (SHCS) that you can send all the way through and put a lock-nut on the other side.

This is a new slash transmission and you can see that it isn't sealed very well.

I just pulled this out of mine.  Lots of dirt inside, clean it out, Q-tips work well. 

If yours starts out with this thick junk in it, then you have to scrape each crevice with the tip of an exacto before brushing.  Clean off your gears using a toothe brush and rag. Drag the bristels across the teeth and onto the rag.

Open up the differential. You can clean out the grease very easily with a few Q-tips.  The only grease that I have found to be thick enough to tune the differential with is this Di-Electric grease. It was actually too thick and should therefore be mixed with a normal bearing grease to thin it out and tune the limited slip action. I would start with 25% Di-Electric Grease and the rest use a generic bearing grease.

This is all the grease it needs for the outside gears (Dow Corning Grease). I used RTV silicone this time around and I am pretty sure it should keep the dirt out.

Previously I had assembled the transmission with some non-drying gasket material and sealed it up with electrical (vinyl) tape.  Here it is after 6 months.  Dirt got in through the tape. It looks like a bit more tape would have helped.  When the dirt gets into the grease it becomes a polishing compound that will eventually wear your gears away.

This roll pin is prone to breaking off after time. If your spur gear spins and the output yokes don't, then i would suspect this.

Maybe this is unnecessary, but I thought this trick was cool back in the day.