Hope this helps a few others or makes them aware of proper maintenance on a machine like a Slash..
I decided to go completely through my used Slash and learn all about it area by area. Now working on rearear suspension and my finds were the pins for the suspension arms were causing a great deal of bind up. So pulling, cleaning and smoothing them with some 400 grit paper and then applying powdered graphite now has them as loose as can be, no bind, totally free.
Next isssue was the shocks. These were fun, neat little pieces parts to find within. Seals, pistons and shafts and E-clips but very easy to disassemble. To my surprise, well not really, I found that both shock shafts were bent, one much more than the other however without taking them apart it was still somewhat easy to compress and rebound the suspension but I felt it had room for improvement!
Now I know for sure that both rear shocks shared the same 2-hole piston cup and now I can fill properly with silicone shock oil. This all will allow me then to make final tuning to them with springs and pre-load on the springs. My suggestion, if in doubt, take one off and take it apart, it is not difficult and it will be beneficial in the long run of tuning and maintaining your suspension on your vehicle. It also allows you to recognize what is going insidea shock when you bash it or need it to follow somewhat smoother terrain.
Just wanted to give back a bit of what I have learned to those that have not been there yet. I also thank those more experienced forum members for educating me on my recent inquiries of which I find as a great benefit to my learning curve
I would say that I am going to gain over 40% in suspension gains simply by taking the time to learn my vehicle, I suggest to disconnect a shock and see it your 'arms' drop freely and proceed from there and take time to take apart and properly fill a shock, if you learn one you have learned four!
Have fun driving and be proud to be your own pit crew