delrin bushings on control arms?

[melloelky]

i think your talking about this type of joint. rod ends have endless amounts of emperical test data to design around. who knows if these have ever gone through any proof load testing. but i do like the design.

Hello
Thanks for posting our pic to give him a better idea how its designed to work! If you are going to be doing a lot of racing I would suggest going with a rod end. If you are looking for a great ride quality and maintain the articulation of a rod end then the roto joints are the way to go. If you have any other questions feel free to ask and I will be more than glad to help.
Thanks
Brad

so,what do you guys think of this design?is there not enough of these out there yet to see what the longevity is?

 

[UMI Sales]

Hello
Its like every other type of end either rod or poly it just depends on what the vehicle is used for depends on how long they last. But even if they wear out they are rebuild-able.
Thanks
Brad

 

[James Bond]

i've had ssm uppers and they really bind pretty bad. having bushings in the rear is the only part that will save you. why not just get a solid poly upper? also if you have poly on the rear and a rod end on the body, the rod end would live a long time. unless you drive it in bad weather.

really? :?: i was under the impression that i have too much poly in the back,i've got it in the lowers,i've got it in the rearend housing,i'm thinking about changing the uppers to make some of this work-i've read that rod ends will take a toll on the other parts and deliver a harsher ride for myself&the car.

ok so i just spent 20mins typing a really good technical reply to your issue and when i clicked preview to proof read it MR ate it. so i'm not about to type the entire thing out again. in brief the rear suspension bushing design is a compromise of stiffness, both torsional and axially, and ride comfort making vibration islolation. anything in there other than the ssm uppers will solve at least one of the issues.

 

[James Bond]

also if you're interested in seeing another neat solution look at cheperformance.com. they make mustang parts but have a good delrin/poly bushing design.

 

[melloelky]

i've had ssm uppers and they really bind pretty bad. having bushings in the rear is the only part that will save you. why not just get a solid poly upper? also if you have poly on the rear and a rod end on the body, the rod end would live a long time. unless you drive it in bad weather.

really? :?: i was under the impression that i have too much poly in the back,i've got it in the lowers,i've got it in the rearend housing,i'm thinking about changing the uppers to make some of this work-i've read that rod ends will take a toll on the other parts and deliver a harsher ride for myself&the car.

ok so i just spent 20mins typing a really good technical reply to your issue and when i clicked preview to proof read it MR ate it. so i'm not about to type the entire thing out again. in brief the rear suspension bushing design is a compromise of stiffness, both torsional and axially, and ride comfort making vibration islolation. anything in there other than the ssm uppers will solve at least one of the issues.

james,i feel your pain friend.i've done that after an hour long email more than once,i wanted to snap.thank you for your help in my quest for a suitable replacement for my ssm uppers.i couldn't seem to find anyone that was running them.your onto something there about making a change in arms to get the quality i'm shooting for,thanks for all the help.

 

[UMI Performance]

Hello Everyone,

I will be glad to chime in and give you some more information regarding our new Roto-Joint.

The Roto-Joint is designed to offer the articulation of a rod end with out sacrificing your quiet ride and the Roto-Joint also maintains a good comfort level. A rod end over time will wear and once the lining inside wears the rod end can become noisy. Or if the item supplied has a inexpensive rod end with no Teflon lining the rod end will most likely be noisy from the beginning. The Roto-Joint features a thick delrin race which absorbs noise and keeps the spherical ball tight. If the delrin would ever wear you can adjust the tension of the Roto-Joint by tightening it. It is also rebuildable if this would ever come, but would take a long time.

We have had this item in design for two years now with plenty of testing and many miles. We have sold quite a few so far and have had great results and feedback. We are very confident in this design and recommend it for street driving and light drag racing. If the car is drag raced quite a bit we recommend to purchase or stick with a rod end.

The SSM arms you have now will work great for drag racing since they are a solid bushing. However they do not allow any give or articulation on the street.

If anyone would have any additional questions please ask and I will be glad to help. Thank you!
Ryan

 

[melloelky]

thanks Ryan,that summed up what i was wondering before.i have a bunch of ideas going here &you guys are on my list!!!thanks for the help,i'll be in touch.

 

[brrymnvette]

Those UMI ones look nice. I'll be picking up a set when I'm finally back on the road and ready to start on the susp. Looks like a great compromise between rod end and a soft bushing.

 

[UMI Sales]

Those UMI ones look nice. I'll be picking up a set when I'm finally back on the road and ready to start on the susp. Looks like a great compromise between rod end and a soft bushing.

Thank you very much! Feel free to leave us know when you are ready and I will be more than glad to help.
Thanks
Brad

 

[LS6 Tommy]

this is more like a rod end. its even specified "While standard rubber bushings should be used for street and handling applications." in the description.

also whats the reason for using this over a rod end??

It's not close to a rod end. It's a spherical BEARING.

The statement about using rubber for street & handling is a referring to not using poly with those arms as it binds the suspension. A little farther down the text lists the spherical bearing upgrade as being for "racing or ultimate street".

Tommy