BluFalcon
Well-known member
About 7 months ago, I had a lot of work done to my car. Poly Rear Subframe Bushings, Energy Suspension Bushing Kit installed, 5 Lug Swap w/ functional ABS, LSD 4 Bolt, Rear Wheel Steering Delete, Active Toe Elimination, and new wheel bearings on all 4 corners.
While on the highway, driving the car home, I noticed a pronounced "whining" noise that varied with RPM while in gear. It seemed to be driveline related, comning from the rear of the car. I thought it might be because of the less compliant rear subframe bushings, allowing noise from the rear end to be transferred to inside the car. I wasn't too worried, until I remembered that the rear end I had used for the car, had been sitting for about 5 years or so in my garage. I couldn't remember if I had left fluid in it or not, while it sat. I checked the fill on the rear end, and it's topped off and looks fine right now. The car has been sitting at a friend's body shop for the last 6 months getting painted, and it's almost ready to come home. I just want to get some ideas on how to troubleshoot this "issue", if it is one.
So, I guess what I'm asking is if anyone who has installed the poly rear subframe bushings on their car, experienced an increase in driveline noise? Specifically, a pronounced whining noise that's RPM dependent?
While on the highway, driving the car home, I noticed a pronounced "whining" noise that varied with RPM while in gear. It seemed to be driveline related, comning from the rear of the car. I thought it might be because of the less compliant rear subframe bushings, allowing noise from the rear end to be transferred to inside the car. I wasn't too worried, until I remembered that the rear end I had used for the car, had been sitting for about 5 years or so in my garage. I couldn't remember if I had left fluid in it or not, while it sat. I checked the fill on the rear end, and it's topped off and looks fine right now. The car has been sitting at a friend's body shop for the last 6 months getting painted, and it's almost ready to come home. I just want to get some ideas on how to troubleshoot this "issue", if it is one.
So, I guess what I'm asking is if anyone who has installed the poly rear subframe bushings on their car, experienced an increase in driveline noise? Specifically, a pronounced whining noise that's RPM dependent?