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Old 06-28-2017, 11:38 AM   #21
Chance
Senior Member
 
Brand: Still Looking
State: Texas
Posts: 6,187
THOR #2121
Quote:
Originally Posted by penguin View Post
As Jamie said they do a lot more than just address sag.
You're correct, they do. In fairness to the point made by blw2 (that they are primarily a helper spring), the description given by JamieGeek is consistent with stiffer springs which is a common configuration for helper springs.

Simply replacing springs with heavier/stiffer springs (or installing multiple springs in combination to do the same, as in Sumos) would also reduce mushy ride, reduce lean on turns, and would also lift front end some if replaced with comparable-length OEM coils.

Quote:
Originally Posted by JamieGeek View Post
I found that it tightened up the front for me. The Axis no longer seems as mushy in the front and doesn't lean near as much in turns as it used to.

That Sumos often replace OEM bump stops for convinience and ease of installation seems to muddy their role somewhat. As shown in posted pictures they are essentially a helper spring to make suspension stiffer. It's not that different than small air bags that also replace bump stops; except that they are not adjustable. They may also provide a small amount of damping which steel coil springs or air springs don't to any significant amount.
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