Thread: ST vs progress bars

Cool, thanks for the info bro. So the ST bar is about 3mm smaller but directly bolts to the rear trailing arm while the progress uses bushings... which sort of contradicts what someone was talking about earlier in regards to the front bar.

I have a feeling this will boil down to opinions on what you like more in your rear end suspension geometry and what fits your driving habits.

From that post I linked:







I don't know how it could be more clear. ST bars are solidly built but have two major drawbacks compared to the Progress bars: ST bars can bind and are non-adjustable.

Is that for sure in a B14? Post 10 shows and talks about a b14 and those are not hemis.

And how does a solid rear bar bind? From what I see they are the same thing but one is 3mm bigger yet the other directly bolts to the trailing arm.

If you are correct, I will change the Suspension Thread to be accurate about the heim link ends.

I know they have heim links on the ends of the rear B13 bar. For sure.

B14 rear bar:

http://www.progressauto.com/products/sfID1/127/sfID2/47/sfID3/70/productID/458

Looks like the B14 rear bar uses polyurethane replacement bushings instead of hiem link ends.

Here's the front bar for all 91-99 vehicles (B13 and B14):

http://www.progressauto.com/products/productID/416

Here's the rear bar for a B13:

http://www.progressauto.com/products/productID/457

Definitely adjustable, with hiem link ends.

Anybody want to look that over and verify that I am reading that right?

If that is the case, I will update the Suspension Thread with this information.

Thanks,

Shawn B

I 100% agree Shawn, but from the post and thread link in #10 it looks like the progress is not adjustable on the B14, which then sort of comes down to 3mm and either a bushing (progress) or a direct bar to trailing arm connection (ST).

Yes. I sold Chill that sway bar.



The rear sway bar is mounted with 4 mounts as Shawnb's pics show. The front mounts cannot be moved whereas the rear ones can. I believe if the rear mounts are moved all the way aft on the sway bar it is at full stiff.

I need to learn to use quotes, I was responding to Isfahan in regards to the fact that he was lead to believe they use hemi joints on the B14 rear bar, but as the pics show they are obviously bushings and also there is zero adjustability. Your post cleared up a lot for us bro, thanks a ton again for digging that up.

I think I misspoke. The rear bushing/mount is the fulcrum for twisting the bar. If you move the rear forward on the bar it will shorten the fulcrum arm in turn making it more difficult to twist the bar. This will make the sway bar stiffer....basically.

Ah, now I understand how they are "adjustable". Hmm, intresting. How much does/can this effect... er, whatever it will effect?

Beats me. Never installed one. I owned it and test fitted it on my car but never put it on. Maybe try PMing Chill and see if he has messed with it much.