Depending on how heavy your truck is, your set up will vary with the driving conditions.
For heavy truck (translate that to mean lots of metal hop-ups), a mixture of Trinity Blue and Black springs are a must. For oil weight, I used 60wt for all driving conditions that involved off road bashing (translate that to mean any off road driving that involved large bumps and lots of big air). For racing, you will want to go with some softer springs and some lighter oil.
For a stock truck, the above should handle it with Trinity Blue springs alone and some 40-60wt oil. Again, for racing...the set up will be different.