Has anyone figured out how to get a little more spring rate into the DTS?
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Cadillac DTS Forum - 2006 through 2012 Discussion, Has anyone figured out how to get a little more spring rate into the DTS? in Past Cadillac Vehicle Discussion; I know... I know... The DTS is a soft ride car. Has anyone changed to a little stiffer set of ...
  1. #1
    DTS-Bremerton is offline Cadillac Owners Member
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    Has anyone figured out how to get a little more spring rate into the DTS?

    I know... I know... The DTS is a soft ride car. Has anyone changed to a little stiffer set of springs? Not looking to slam it or really degrade the ride. I would just like a little less body roll. I'm guessing there must be some kind of spring that will fit out there. I can't imagine a sway bar option.

    Anyone figure out anything?

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    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Springs and sway bars from a performance model would bolt on. MRC shocks/struts would not be compatible.

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    tjwhite721's Avatar
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    Quote Originally Posted by DTS-Bremerton View Post
    I know... I know... The DTS is a soft ride car. Has anyone changed to a little stiffer set of springs? Not looking to slam it or really degrade the ride. I would just like a little less body roll. I'm guessing there must be some kind of spring that will fit out there. I can't imagine a sway bar option.

    Anyone figure out anything?
    I'm not sure how long you been driving the DTS or Cadillacs in general, but once you master how to take curves and turns at high speeds. You wont need a stiffer ride :-) My old mechanic used to be a dirt track race car driver. He took my old Seville out on a curvy road and pushed it to the limit. When we got back to the shop, my tires were SMOKING! I said in the car, "where gonna spin out". He said no, not with these cars, they were made to handle this kind of driving. Also, with front wheel drive, the car will go in the direction your going (within limits).

    I understand your concern though. How fast are you driving your DTS? At 100 mph you can still hug a curve pretty good (you will feel the body lean though). I wouldn't suggest doing it often :-) However, when driving fast on a straight road, nothing feels better than this smooth soft riding love wagon. Actually feels like your floating on air.

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    DTS-Bremerton is offline Cadillac Owners Member
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    Most of what I want to correct is the low speed "getting out of shape" when crossing speed bumps, and driveways thresholds. Staying a little more flat in higher speed turns would be a side benefit. This car really moves around a lot more than necessary. Just a bit more firm would be great and still ride awesome.

    My understanding that the springs on the performance version were the exact same spring rate. Maybe the swaybars were different, but I thought I read that the mag ride shocks were the only real difference between the "performance" and "regular" versions. Everything I find says the sways interchange between FE1 and FE3... so they are the same.

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    TopherS is offline Cadillac Owners Fanatic
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    How many miles do you have on your car? Have the struts been replaced up front?

    I ask this because my car has now 59K miles on it, but about 10K miles ago (shortly before I bought it), my front struts were replaced by the dealer. The ride is OK (harsher than I like, but that's another story). The ride is how it was originally, I suspect. There's not much body roll. It can take curves well and seems very stable on curves, bumps, speed bumps, etc.

    I'm wondering if perhaps a new set of struts up front (if you don't already have new ones) may correct much of what you seem to be experiencing.

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    DTS-Bremerton is offline Cadillac Owners Member
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    Mine has 96K miles. When you do the traditional shock/strut test (push down on a corner and it should rise back up quickly and stay up...) it bounces just a little. So I know it is time for shocks/struts, but I was hoping to slip a little extra upgrade in at the same time.

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    MoistCabbage's Avatar
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    The "bounce test" is pretty useless with today's firmer sprung, lower travel cars. The only time the car will continue to bounce is if they're COMPLETELY trashed. One bounce is normal, but even then that doesn't tell you much about the dampers low speed damping ability.

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    DTS-Bremerton is offline Cadillac Owners Member
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    I wouldn't say useless. I would agree that it is not 100% conclusive. However, when you press down and release and you get upward movement followed by about 20% (of original upward travel) in the downward direction and you can still see it taking some very small upward and downward travel before it stabilizes... then they are ready for replacement.

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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    The trim level in the "DTS" determines the sophistication of the suspension system. If the system is "active" it exhibits very different characteristics with the key on and off. A passive system is the same, hot or not - just like a '62 Chevy.

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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    UUhmmm.....They actually designed speed bumps to force you to slow down...If your went over them without a problem then the engineers have failed However if it's tracking and drifting at really low speeds you have some suspension issues and would have to agree that your overdue for maintenance.

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    tjwhite721's Avatar
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    Quote Originally Posted by Submariner409 View Post
    The trim level in the "DTS" determines the sophistication of the suspension system. If the system is "active" it exhibits very different characteristics with the key on and off. A passive system is the same, hot or not - just like a '62 Chevy.
    When I turn my key on, the back rises. I'm not sure if it's air or electronic or both. My old SLS had both electronic struts and shocks.

    I think he should replaces the rear shocks with regular shocks. But the with the weight of the vehicle. The tires will wear a lot faster and other suspension parts will wear faster as well.

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    TopherS is offline Cadillac Owners Fanatic
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    Quote Originally Posted by tjwhite721 View Post
    When I turn my key on, the back rises. I'm not sure if it's air or electronic or both.
    That is your Electronic Level Control (ELC) system...which pumps air into the rear shocks to keep the car level even if there is weight loaded into the back of the car. All DTSs have that.

    I believe that the only DTSs that have any sort of electronics in the suspension (aside from the ELC system) is the Performance editions. All other DTSs will have the non-electronic suspension.

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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    My 09 had more body roll with the stock tires and rims and much less with the aftermarket larger rims and low pro tires...well felt like it does any ways

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    In my humble opinion; getting some sort of 'performance' sway bars would help with if not eliminate most of the body roll

  16. #15
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    Re: Has anyone figured out how to get a little more spring rate into the DTS?

    Quote Originally Posted by MoistCabbage View Post
    Springs and sway bars from a performance model would bolt on. MRC shocks/struts would not be compatible.
    But he already has them on his car. The only difference between the suspensions on regular and performance sedans is in the rear, performance coil springs are slightly taller to accommodate the MRC shock.

    Quote Originally Posted by DTS-Bremerton View Post
    My understanding that the springs on the performance version were the exact same spring rate. Maybe the swaybars were different, but I thought I read that the mag ride shocks were the only real difference between the "performance" and "regular" versions. Everything I find says the sways interchange between FE1 and FE3... so they are the same.
    I looked into everything I could do with my Lux II and the best option was to get a MRC equipped DTS. Even with MRC though this is a floaty suspension and the MRC can only do so much.

    If you looking for decent ride ditch the AC Delcos and go with Monroes or KYB. That's what I did before I switched I put Monroes and it was 70% better drive but still floated quite a bit.


    If you looking for a more performance oriented ride then a CTS/STS is where you'd want to be.

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