Poly bushing set, yes or no???

**Musclecargt71** · 08-03-2009, 07:26 AM

Hi guys,

I was thinking of doing a set of polyurethane bushing for my 2002 WS6. Has anyone else had this set up? Too stiff? Any other recommendations.....

Your input is appreciated....

**vetteemt** · 08-03-2009, 08:21 AM

Poly is better then the stock rubber in most cases, but it depending on where you plan to use them. For engine and tranny mounts they work great and for sway bars they work well. For control arms and other parts that have a wide range of motion they are okay, but have a tendency to bind under heavy load causing the suspension to not move freely. You well feel some improve over the rubber bushings simply because they bind too but also deflect allowing suspension parts to move in directions you don’t want them to. The only way to have a free moving suspension is to have all your bushings be rod ends. They allow no deflect and well not bind, this is why most race cars run them everywhere.

Your ride quality well be a little stiffer with either poly or rob ends simply because you no longer have a squishy rubber bushing absorbing impacts. Rod ends well be louder then poly because its metal on metal, where the poly well absorb some noise.

**Musclecargt71** · 08-03-2009, 10:17 AM

Thanks for the info vette.....I plan on using poly for the sway bars and such, but thats what i was trying to decide if I should use them in the control arms. I've heard people talk about them binding up as you said....so should I just stay with rubber since I dont have the $$ to convert to rod ends?

Thanks again

**Blue28** · 08-03-2009, 10:37 AM

J&M is the only company so far, that has rear LCA's with poly bushing (3 piece polyball) that I would recommend, that's also budget friendly.

FYI, I sent you a link Musclecargt71 .

**vetteemt** · 08-03-2009, 10:58 AM

Originally Posted by Musclecargt71

Thanks for the info vette.....I plan on using poly for the sway bars and such, but thats what i was trying to decide if I should use them in the control arms. I've heard people talk about them binding up as you said....so should I just stay with rubber since I dont have the $$ to convert to rod ends?

Thanks again

For a daily driver that you might autocross and drag race every once in a while then the polys would be an upgrade from stock since they well eliminate most of the deflection of rubber. No matter what you do make sure your control arms are grease able with out removing them from the car. Keeping the bushings properly greased, well greatly help with binding. If you are going to seriously drag race and autocross then I’d hold out for the rod ends. With that said I personally have rod ends everywhere on my daily driver and yes they are noise, but it corners and launches great.

**Musclecargt71** · 08-03-2009, 12:52 PM

Thanks for the recommendation...Blue28 I looked at your link and those LCAs look perfect for what I'm looking for. I should buy relocation brackets too since I'll be putting strano springs on the car which will lower it by 1.25" right?

**Blue28** · 08-03-2009, 02:24 PM

Originally Posted by Musclecargt71

Thanks for the recommendation...Blue28 I looked at your link and those LCAs look perfect for what I'm looking for. I should buy relocation brackets too since I'll be putting strano springs on the car which will lower it by 1.25" right?

I would wait until after you lower you car and see then if you really need lca relocation brackets.

**vetteemt** · 08-04-2009, 03:58 AM

You want your rear lower control arms to be level or at a negative angle. Lots of times when people lower their cars they experience that the car well not hook up as well and don’t know why. If your rear lcas are at a negative angle you well crate antisquat when launching, which results in hooking up better. What relocation brackets do is correct the lca angle to level or slightly negative after lowering the car. Adding them and setting to a negative angle well greatly help in acceleration traction. Also for relocation brackets I’ve always preferred the weld in type do to the great stress they experience. My set are from Spohn Performance they have multiple holes allowing different lca angles to be set and are also both bolted and welding in. So to answer your question I always say if your going to lower your car then you should always have relocation brackets to correct the suspension geometry.