I just bought some rancho RS 9000's from snake racing yesterday (very good price

) for the vehicle described in my sig line. The model of the shocks is RS99112, i am told that these are the correct length for the mods on my rig. This is all good. However i have just opened the boxes of the shock and they come with all these extra parts and no instructions.
These extra parts per each individually boxed shock include:
1 x purple nylon bush
1 x bolt thingy with thead either end, one thread larger diameter than other, washers to suit and nuts to suit.
Many x washers with holes of varying sizes
4 x metal sleves, i think these must go inside the bushes but correct me if im wrong.
Just wondering if anyone knows what all these extra parts are for?
Thanks wes.
My mind is like a steel trap....quite dangerous because i forget where i left it.