A change in sound when accelerating led me on a search to find out what was going on. Snooping around beneath the S4 revealed this:
Apikol B5 S4 Rear Differential Mount
Found it! Fortunately Apikol sells just the bushings for the mount so I ordered a pair to replace the failed parts.
Apikol Differential Mount Bushing
It turns out that there are two versions of this bushing so I needed to order both since I did not know at the time which version I have. I’ve documented the part number in case this happens again.
A couple of days ago the Avant's rear differential came back from the shop where it was having an MFactory Helical Limited Slip Differential installed. I set about installing the differential as well as a slightly newer Apikol rear differential mount. I may finally be at the point where I…
This afternoon I finished removing the engine and transmission from the Silver S4. This pair will be going into the Avant. I also installed the rear portion of the Avant's exhaust pipes onto the Silver car. The Avant had an AMD built three inch exhaust on it that sounded pretty…
These Apikol transmission mounts have been sitting in a bag for a couple of years now, I finally decided to replace my worn 034 Motorsport density line mounts with the Apikols. What is immediately noticeable is how much thicker the Apikols are than the street density line. I never had…
