I recently purchased a set of new cab mounts for a 69’ c10 from classic industries. They arrived but with no instructions. I know how they are installed but the question is, where does the fatter of the two go, front or rear? The sizes are different I emailed classic and have had no luck in a response.
i watched brother videos on the install but how they distinguish between them are different from what I have from classic. Brothers have a meta type plate on the rubber and the other is just rubber. The cab mounts from classic are all rubber or at least there is no sound difference from tapping them
since the cab mounts on the truck bare little if any resemblance to the new ones I can’t use that as a way to tell the difference.

i watched brother videos on the install but how they distinguish between them are different from what I have from classic. Brothers have a meta type plate on the rubber and the other is just rubber. The cab mounts from classic are all rubber or at least there is no sound difference from tapping them
since the cab mounts on the truck bare little if any resemblance to the new ones I can’t use that as a way to tell the difference.