ITAC News.

[JoshS]

But the GCR doesn't say only suspension bushings are free. It says "Bushing material, INCLUDING that used to mount a suspension subframe to the chassis, is unrestricted." While itincludes suspension subframe bushings in saying they are unrestricted it doesn't limit those bushing that can be modified to only suspension bushings in any way. It simply says bushing material is unrestricted. The intention may have been to limit changes to only suspension bushings, but the wording doesn't reflect that. Moreover the front subframe on many cars IS the front suspension subframe. If that's the case, any bushings on it are free by that wording.

That section you are quoting is in the "Suspension Mounting Points" section of the ITCS. Context matters. Not all bushings are unrestricted, only Suspension Mounting Point Bushings. Hard to believe that anyone sees fit to ignore the context.

And yes, the front subframe is often both an engine cradle and a suspension subframe. That doesn't mean that any bushing on it is a suspension bushing, to me that's a huge stretch.