Guy above me did not make sense in his post, disregard that info he posted.
There is a trade off when you raise a truck.
Anytime you lift it you are going to increase the harshness to a certain degree.
If you have the TRD off road package the springs up front suck to begin with for a smooth ride since they are progressive. If you have a sport model or SR5 the springs they are linear so they rider better and some members just run stock springs and set the 5100s to .85" or 1.75" of lift.
Replacing them with 5100 and eibach/toytec
coils set at 0 on the shocks will lift about 1.5 to 1.75 inches and ride basically same as stock.
If you run the same combo and set shock at .85 it will ride a lil rougher than stock but raise the to about 2-2.5 inches.
There are also Old man emu springs available to put on the 5100's or the OME shocks. They are very popular as well. 4 spring rates and heights to choose from.
Typically a spacer is placed on the drivers side to fix the factory lean but the spacer is only a 1/4" thick.