I've posted about this rear-end noise a couple times so I wanna try again and give an update. I will pre-appologize for the length but I am so tired of this I want to sell my mustang.
03 gt 5sp
MM extreme duty LCA's
Brand new set of stock UCA
polyurethane spring isolators
Eibach springs
new kyb shocks
Had the stock control arms and lowering springs for about a year and no problems at all with noise. I try to upgrade my rear suspension with a set of MM LCA's and a set of stock style UCA's with stiffer bushings from summit ( they were free from my brother and a bushing on one the original stock arms went out so I just replaced for the hell of it.) Also got the shocks from him and installed them as well.
I installed things mostly one at a time to make sure they worked correctly without any problems, like controls arms and spring isolators one week, shocks the next.
Everything was fine for a week or two and seemed like everything was breaking in just fine and then I heard some wierd noises. When taking off from a dead stop, or taking low speed turns(in my parking garage I can hear it really well turning around the corners) I hear a noise that sounds like a light pop / creaking sound. It def from the rear suspension but can't really pinpoint by myself. Maybe the best way I can describe it is when my suspension is got tension on it. I called the MM guys and they are very helpful with questions. They can't do much over he phone I understand, but they did point me to make sure the arms were lubricated well on the chasis end of the XD arms and I did just that, all checked out fine, even using their grease.
Around town the XD arms ride like a charm, its just that the noise is freakin embarassing. When on the interstate, which I travel frequently, I can feel a bad vibration. When I travel about 75-85 mph and let off the gas and the car is just slowing down I get a bad vibration that vibrates everything inside the cab area. I called MM again about that and they told me I shouldn't pick up any vibrations or noises like what I'm describing from just the XD arms. I really want super performance but I shouldn't have to sacrifice all this for just a good LCA/UCA setup, that's ridiculous. I checked on the website and with MM via phone several times before getting these arms to make sure they would NOT pick up tons of extra noises. (BTW - I went XD arms because for a month I had some cheap LCA's from summit that had poly bushings all around and I kept blowing out the same bushing on the same arm 3 times.) I was thinking maybe the XD arms were too much for my car but I'm afraid to go to a full poly setup again, maybe something wrong with my car? Please help me before I pull out my hair and buy a camaro!! ahhh!!! dont let that happen!!
03 gt 5sp
MM extreme duty LCA's
Brand new set of stock UCA
polyurethane spring isolators
Eibach springs
new kyb shocks
Had the stock control arms and lowering springs for about a year and no problems at all with noise. I try to upgrade my rear suspension with a set of MM LCA's and a set of stock style UCA's with stiffer bushings from summit ( they were free from my brother and a bushing on one the original stock arms went out so I just replaced for the hell of it.) Also got the shocks from him and installed them as well.
I installed things mostly one at a time to make sure they worked correctly without any problems, like controls arms and spring isolators one week, shocks the next.
Everything was fine for a week or two and seemed like everything was breaking in just fine and then I heard some wierd noises. When taking off from a dead stop, or taking low speed turns(in my parking garage I can hear it really well turning around the corners) I hear a noise that sounds like a light pop / creaking sound. It def from the rear suspension but can't really pinpoint by myself. Maybe the best way I can describe it is when my suspension is got tension on it. I called the MM guys and they are very helpful with questions. They can't do much over he phone I understand, but they did point me to make sure the arms were lubricated well on the chasis end of the XD arms and I did just that, all checked out fine, even using their grease.
Around town the XD arms ride like a charm, its just that the noise is freakin embarassing. When on the interstate, which I travel frequently, I can feel a bad vibration. When I travel about 75-85 mph and let off the gas and the car is just slowing down I get a bad vibration that vibrates everything inside the cab area. I called MM again about that and they told me I shouldn't pick up any vibrations or noises like what I'm describing from just the XD arms. I really want super performance but I shouldn't have to sacrifice all this for just a good LCA/UCA setup, that's ridiculous. I checked on the website and with MM via phone several times before getting these arms to make sure they would NOT pick up tons of extra noises. (BTW - I went XD arms because for a month I had some cheap LCA's from summit that had poly bushings all around and I kept blowing out the same bushing on the same arm 3 times.) I was thinking maybe the XD arms were too much for my car but I'm afraid to go to a full poly setup again, maybe something wrong with my car? Please help me before I pull out my hair and buy a camaro!! ahhh!!! dont let that happen!!