Steeda LCA's

Your right, the urethane will have more flex than a heim joint (spherical bearing), but most of the quality LCA should have zert fittings for lubing...thus no noise. Idealy they should use delron instead of urethane, but delron is more expensive and is a harder compound. Like a heim joint, more suspension shock noise will ocur. That's why I went with the CA-5 MM LCA in the hope I could get the best of both worlds. It's the uppers I was more concerned about because they needed to be adjustable for the pinion angle setting, especially if your car is lowered. I haven't had any issues with MMs urethane bushings at the chassis coming apart and I've got over 400 hp.
 
I have the MM Road Race Rear LCA's with both sides heim jointed. Yeah, they clank a little back there but so does the PHB and since I road race the car the added performance is worth it. It's really not that bad on the street either.

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John
 

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If your car is lowered, I would buy the adjustable uppers so you can setup the pinion angle. They're not that much dough. I've always felt the uppers took more of a beating than the lowers anyway. I tore a stock right rear upper from the chassis on my 90 LX Coupe and it didn't have as much grunt as my blown 4.6. The correct pinion angle will give you better launches and harder on the power coming off of the corners for road racers .
 
If your car is lowered, I would buy the adjustable uppers so you can setup the pinion angle. They're not that much dough. I've always felt the uppers took more of a beating than the lowers anyway. I tore a stock right rear upper from the chassis on my 90 LX Coupe and it didn't have as much grunt as my blown 4.6. The correct pinion angle will give you better launches and harder on the power coming off of the corners for road racers .

My car is lowered 1 and 1/2 so I guess the uppers are in. I think I'll go J&M on both. Thanks for the input again man.
 
they are very good. A lot of 12 second na cars use them. They do they job, and for the price of the others, you can get both uppers and lowers done at the same time. I had the lowers on my old car, and I will be ordering the set of both uppers and lowers soon
 
no problem. Just a note, they are not the udjustable pro series. The pro series run around 180 for the lowers and I believe 160 for the uppers, but not sure on the uppers.

Hardcore racers will defenetly benefit from the udjustables, but as a stock replacement, the regular ones are fine. Ill be shooting for 12's with them, NA.
 
no problem. Just a note, they are not the udjustable pro series. The pro series run around 180 for the lowers and I believe 160 for the uppers, but not sure on the uppers.

Hardcore racers will defenetly benefit from the udjustables, but as a stock replacement, the regular ones are fine. Ill be shooting for 12's with them, NA.

340 for the adjustable setup, still not bad at all. Maybe I'll wait for them until my birthday comes around:D