Hey guys. Im putting my front end back together on my 55 belair (Finally!) and while lookin at my buddies 55, i noticed his has a rubber bushing, like a rectangle or square puck. Its where the core support sits on the frame (looks like both mounting bolt run through it). I've Searched hi-n'-lo and cant seem to find this thing. and its startin to hold me up Can anyone help me out here? (P/n, where to find it ect.) anything would be much appreciated!