revshift subframe bushings installed
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2004-2007 Cadillac CTS-V Performance Mods Discussion, revshift subframe bushings installed in Cadillac CTS-V Series Forum - 2004 - 2007; Sunday I installed my revshift cradle bushings. I ordered the red ones. My gen 2 diff had been leaking really ...
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    trucker922's Avatar
    trucker922 is offline Cadillac Owners Member
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    revshift subframe bushings installed


    Sunday I installed my revshift cradle bushings. I ordered the red ones. My gen 2 diff had been leaking really bad, so I also threw in the gen 4 I had laying around with a red revshift bushing as well.

    It is quite time consuming. Getting the stock bushings out was a headache. All I can say is thank god for air tools!! Cut around rubber then knocked the middles out. Word of advice: when cutting the rubber knock out the middles immediately Cuz the stuff gets so hot it will just melt back together. Then cut a slit in the sleeve, and air chiseled em out. The new red bushings proved difficult to install also. Pretty tight fit! Nothing a 2x4 and sledgehammer can't fix.

    First off, the gen 4 diff is making a bit more noise than my gen 2. Doesn't really bother me as long as it doesn't blow up! The revshift bushings could also have something todo with it.

    What a difference though going from all stock to all revshift. Not only does the car feel tighter, it also feels like my right foot is a little more connected to the rear wheels. I got it sideways today with zero wheel hop. I also purchased the trans mount insert and mm, but still waiting on my headers to come. I'll install those then. If they make as big a difference as the stuff I just installed this car is goona drive like a dream!

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    platinum_V is online now Cadillac Owners Member
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    Re: revshift subframe bushings installed

    Nice! Im glad it got rid of the wheel hop completely. I literally just ordered mine 10mins ago. Got all red, craddle, diff and trailing arms also got the tranny mount. Cant wait to see the difference.

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    trucker922's Avatar
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    Re: revshift subframe bushings installed

    Yeah... I got cheap and didn't order the trailing arm bushings. Probably should've. it's a pretty noticeable difference. As soon as I turned onto main road I could feel the difference. I can't wait till it rains again. That's when I really noticed wheel hop.

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    Wow you pulled the whole thing out! I was thinking of doing that, but I was afraid I wouldn't get it back in right.

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    Re: revshift subframe bushings installed

    Quote Originally Posted by nvthev View Post
    Wow you pulled the whole thing out! I was thinking of doing that, but I was afraid I wouldn't get it back in right.
    Just disconnect brake lines on passenger side, unclip abs sensors, and when u lower it down u can disconnect e brake in the middle. Pretty easy.

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    Revshift is offline Cadillac Owners Fanatic
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    Re: revshift subframe bushings installed

    Great picture!
    I am glad to hear they worked out for you.

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    Re: revshift subframe bushings installed

    Nice. I am glad to hear they made a noticeable difference. And a positive one, at that. Good job with the install. Post an update after you get to play in the rain.

    Im in the process of slowly accumulating all of RevShift's blue bushings for my CTS-Jr. Even the V6 gets a little skippy in the rain. And it rains a lot in Portland. I never track my car, nor will I ever have over 400rwhp, so I figured I do not really need the stiff red ones. That and I am a die-hard MICHIGAN fan, so I avoid red anything whenever possible. Go Blue.

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    FuzzyLogic is offline Banned
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    Re: revshift subframe bushings installed

    95A mounts are appropriate for everything except the motor and transmission. No exceptions for driving style or application.

    Subframe, differential, trailing arm, and control arm mounts are geared toward controlling low amplitude, high-frequency vibrations. All you're doing with 80A mounts is allowing the subframe to move relative to the car. Since the motor (and by extension, the transmission) is a neverending source of relatively low frequency, high amplitude vibration, only the most dedicated drivers should consider 95A and harder mounts.

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    Re: revshift subframe bushings installed

    Quote Originally Posted by FuzzyLogic View Post
    95A mounts are appropriate for everything except the motor and transmission. No exceptions for driving style or application.

    Subframe, differential, trailing arm, and control arm mounts are geared toward controlling low amplitude, high-frequency vibrations. All you're doing with 80A mounts is allowing the subframe to move relative to the car. Since the motor (and by extension, the transmission) is a neverending source of relatively low frequency, high amplitude vibration, only the most dedicated drivers should consider 95A and harder mounts.
    Yeah, Im definitely not the level of "dedicated driver" as some on this forum. I do not have a boneyard of shattered 1,000hp axles or anything like that. More of a "spirited" driver... as spirited as I can get in the 3.6L CTS, anyways. And my CTS has 120,000 miles on it, so I think its about time to replace some bushings.

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    Andringa is offline Cadillac Owners Enthusiast
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    Quote Originally Posted by FuzzyLogic View Post
    95A mounts are appropriate for everything except the motor and transmission. No exceptions for driving style or application.

    Subframe, differential, trailing arm, and control arm mounts are geared toward controlling low amplitude, high-frequency vibrations. All you're doing with 80A mounts is allowing the subframe to move relative to the car. Since the motor (and by extension, the transmission) is a neverending source of relatively low frequency, high amplitude vibration, only the most dedicated drivers should consider 95A and harder mounts.
    Fuzzy the only exception I would make is that if like me you already have the Spectre Werkes cradle inserts you may not want the 95A.

    The combination of a whining diff + Spectre inserts + 95A diff bushing is driving me nuts right now.

    I was hoping the SW inserts could stay, but I think I need to get rid of them to stop this noise.

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    FuzzyLogic is offline Banned
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    Re: revshift subframe bushings installed

    Quote Originally Posted by Andringa View Post
    Fuzzy the only exception I would make is that if like me you already have the Spectre Werkes cradle inserts you may not want the 95A.

    The combination of a whining diff + Spectre inserts + 95A diff bushing is driving me nuts right now.

    I was hoping the SW inserts could stay, but I think I need to get rid of them to stop this noise.
    You have Delrin inserts. What did you expect? Delrin is comparable to aluminum in terms of hardness. Also, it has virtually no plasticity, meaning that any impact hard enough to deform it will deform it permanently.

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    Andringa is offline Cadillac Owners Enthusiast
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    Re: revshift subframe bushings installed

    Honestly, I was expecting a bit of noise, but thought I could live with it. I was wrong

    In hindsight I should have either gone with the 80A Diff bushing or planned on immediately swapping the SW inserts for the RS Bushings. Just throwing my experience out there so that people can avoid my current combination.

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    FuzzyLogic is offline Banned
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    Re: revshift subframe bushings installed

    Quote Originally Posted by Andringa View Post
    Honestly, I was expecting a bit of noise, but thought I could live with it. I was wrong

    In hindsight I should have either gone with the 80A Diff bushing or planned on immediately swapping the SW inserts for the RS Bushings. Just throwing my experience out there so that people can avoid my current combination.
    You should be able to greatly mitigate the noise with two layers of B-Quiet or Dynamat over the rear third of the transmission tunnel (use the hand test with the vehicle running to guide placement) plus one layer of MLV (e.g. Luxury Liner Pro) under the bottom section of the back seat and interposed between the metal plate in the back seat and the foam padding.

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    Re: revshift subframe bushings installed

    I still have UUC Motor/Tranny/Diff mounts plus the RevShift coupler as well as the Spectre inserts. Before the conversion, the only time I had bad diff whine was prior to replacing with a Gen VI diff.
    After that the noise was very subtle but given the performance trade off I was happy...
    2005 cadillac cts-v.r #83 nasa st3 . 2011 escalade esv . 2011 sierra denali

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    Re: revshift subframe bushings installed

    Quote Originally Posted by FuzzyLogic View Post
    You should be able to greatly mitigate the noise with two layers of B-Quiet or Dynamat over the rear third of the transmission tunnel (use the hand test with the vehicle running to guide placement) plus one layer of MLV (e.g. Luxury Liner Pro) under the bottom section of the back seat and interposed between the metal plate in the back seat and the foam padding.
    That's a good suggestion. I have the RS MMs/transmount and Delrin cradle inserts. I get a resonating rattle around that area cruising interstate speeds.

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