yeah, the split aluminum rings or urethane bushings are much easier. for the most part, it solid mounts the crossmember and eliminates the bushing.if you buy anything that is a complete bushing, it will be a lot of labor to install it.here is an example
http://www.mysportscar.com/fea...1.htm
for pricing on the aluminum rings, google search subframe bushings for a 240sx or check one of the nico sponsors
http://www.splparts.com/