I am putting in my new coil over shocks and springs on my 91 mustang. There is a needle bearing that sits between the top of the spring and the camber caster plate. I think it is to make it eaisier to adjust since there is also a heavy duty sealed bearing on the camber caster plates. Should i put some grease on the needle bearing or not? Also I have a steeda bumsteer kit thadoes not have a boot like the stock tie rod ends. Does this reqire grease? What kinds of grease should I use?