I,m starting from ground zero on my car, just got the frame back from the powdercoater, this car will be 99% cruiser, I don't need a corner carving G-machine but I don't want it to handle like a 65" Cadilac either. My Question is, I'm thinking of going with ATS spindles and SC&C uppers so I can run C5 brakes, but I was thinking I would keep the stock lower arms with rubber bushings, would that matter?:confused: Thanks

Based on all I know the lower arms do all the work, the upper arms just keep all the rest of it from falling out of the car.

I'd ask Mark at SC&C for recommendations and I would not recommend 40 year old stamped steel lower arms for anything but a restoration. :D

If you are wanting to improve the handling, urethane. Fed is correct ,the lower a frames due most of work. The rubber bushings will give at a different rate than the urethane. If you replace the A-frame bushings, replace them all out of the same material. Thomas

For a cruise around car, I would stay with rubber. I have worn out a set of poly bushings in the rear of one toy. Not worth the ride to me.

In the rear, it is typical to leave rubber in the axle housing bushings at least

Rubber everywhere. Poly bushings require more lubrication and cause too much harness and allow more noise to transmitt throught out the entire vehicle. Poly bushings are only good for 1/4 mile cars.

I would not recommend 40 year old stamped steel lower arms for anything but a restoration. :D

Factory boxed or open L/C arms??? Fred, no offence but you make the factory lower arms sound like liquorice. :D

They may not be the greatest in a G-machine, but in a straight line the factory boxed F41 arms can/will take a lot of abuse IMO. :thumbsup:

Factory boxed or open L/C arms??? Fred, no offence but you make the factory lower arms sound like liquorice. :D

They may not be the greatest in a G-machine, but in a straight line the factory boxed F41 arms can/will take a lot of abuse IMO. :thumbsup:

While not directly stated, it sounded like the original poster was talking about Front suspension in this thread... I think thats what Fred was mentioning... I'd agree with Fred, IMO I'd get 'new" lower arms (front)...

For a cruiser, new rubber should be fine...

While not directly stated, it sounded like the original poster was talking about Front suspension in this thread...
In that case, I would agree with you and Fred. :thumbsup:

Thanks for the opinions guys, I guess the problem would be if I want to go with tall spindles I would need to change the upper A-arms because of the binding problem I've heard about with the ball joints on stock uppers, or could I just go with tall ball joints? If I want to run the C5 brakes do I have any other options than the AFX spindles?

Poly bushings in the front don't cause the stiff harse ride like poly bushings in the rear. The two bushings in each arm pivot on a common axis so no binding occurs. Not true with the 4-link tri-angulated rear arms.