I have a 91 explorer 4x4 with a 4" trailmaster lift and BFG 32x11.50's. The stearing and handling seems to be a bit vague and sloppy; and the explorer seems to wander. My mechanic said the stock radius arm bushings are shot, so I've ordered new polyeurythane bushings. He said I could try new bushings but it may not solve the problem. I've seen pictures of long link radius arms and also Superlift makes the "Super Runner Stearing System" for Fords with the IFS axle. Can anyone tell me which would solve my problem the best. I can't really afford the Superlift Stearing system and the new long link radius arms. They seem like two totally different things yet they appear to address the same problem? Anyone's help would be greatly appreciated!