Hi Galen, I agree with Herb Adams and Global West. In fact, I my entire suspension system is GW. According to GW, if you use their rear lower arms with the spherical joint/del-a-lum bushing, you should use the stock upper arm with rubber bushings. That's how my rear suspension is setup along with GW coil springs and QA-1 adjustable shocks. I'm very happy with the ride and handling and I'm pretty sure you will be too if you decide to go this route.
Herb Lumpp http://users.adelphia.net/~hlump/ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Galen and Melissa Love Sent: Monday, September 01, 2003 10:42 PM To: [EMAIL PROTECTED] Subject: [Chevelle-list] suspension bushings - polyurethane, nylon? Hey fellas, give me some input on suspension bushings. I rebuilt my front suspension a few years ago with Performance Suspension Technology's "polygraphite" bushings. These are polyurethane bushings which are impregnated with graphite for lubrication. I'm getting ready to rebuild the rear suspension, but I haven't decided what bushings to go with yet. If you've ever read the book "Chassis Engineering" by Herb Adams, then you know that he doesn't recommend polyurethane suspension bushings because of the need for the polyurethane to rotate against the metal bushing sleeves combined with the fact that they are not greasable for ongoing lubrication. He says that they will tend to bind preventing smooth operation of the suspension system and causing the car's suspension to not always return to it's equilibrium position. I've noticed this a little bit on my Chevelle, but not to any great extent. I've also noticed some squeaking from the bushings, but nothing too drastic or annoying. He seems to like bushings using "nyliner" nylon iserts, but I haven't run across anybody that sells them. Has anyone used these "nyliner" bushings? If so, what did you think and where did you buy them? I get the impression from the book that I could go to my local bearing supply house and buy the nyliner inserts, but that I would have to custom-machine some steel sleeves for them to be installed in. Another interesting point - Global West also states that polyurethane bushings tend to bind in the rear suspension. They recommend using a spherical bearing on the frame end and either polyurethane bushing or their Del-a-Lum bushing on the rear end. All right, guys... Chime in and let me know what you think. Thanks, Galen _______________________________________________ Chevelle-list mailing list [EMAIL PROTECTED] http://chevelles.net/mailman/listinfo/chevelle-list_chevelles.net
