body mount modification?
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
body mount modification?
So, to review, the C3 has 8 rubber bushed body to frame mounts, and two solid (metal to metal) mounts under the radiator.
Why aren't those two forward mounts set in rubber as well?
What if I rubber bushed those mounts under the radiator support by using, say, two shock absorber bushings and a longer bolt? The unthreaded shank of the bolt would be sized to span the extra depth of the two shock absorber bushings. A 2 1/2" long bolt would have an unthreaded shank of an inch or so, and work out nicely. That modification should improve the NVH a bit, I think.
What's the downside to something like that?
Why aren't those two forward mounts set in rubber as well?
What if I rubber bushed those mounts under the radiator support by using, say, two shock absorber bushings and a longer bolt? The unthreaded shank of the bolt would be sized to span the extra depth of the two shock absorber bushings. A 2 1/2" long bolt would have an unthreaded shank of an inch or so, and work out nicely. That modification should improve the NVH a bit, I think.
What's the downside to something like that?
Thread Starter
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
The body lands on the frame in 10 places on a C3. On my '74, eight of the places are rubber bushed; the two under the radiator support are metal to metal. So any vibrations in the frame are transmitted directly to the radiator support, and through that, the rest of the body. I just thought it might improve the Noise, Vibration and Harshness damping if I rubber bushed those last two places.
I'm going to do it and report.
I'm going to do it and report.
Melting Slicks
Joined: Aug 2001
Posts: 3,046
Likes: 124
From: Wichita KS
