BlueInGreen44 wrote: Ok, this may be a silly question... From what I know I should also replace the bushing in the differential mount sooner rather than later. Would a stiffer poly material mount in that spot be overkill for a street car?
There are 3 for the diff and 4 in the subframe. The stiffer delrin or poly subframe mounts are much better for keeping accurate suspension under load because they prevent the subframe from moving. And they are much easier to install. So, yes on the 4 subframe mounts.
For the diff mounts on a street car - new stock rubber ones are fine. They help insulate gear whine and driveline noise/vibration.
