I don't think that neither the OP or I have ever heard of "rust"... what's that? 


my K5 backs where tacked..
the front ones are bolts, and accessible from the front of the core support, in little windows to the side of the rad.. they are free-spinning...
I'm not out in the shop at the moment, so it might be obvious, but are these windows accessible with the bumper and stuff on, or do I need to do a little disassembly?





Now do you see why I recommend the LMC kit?
Martin

Does it come with the upper cups? Yah I prolly should have gone that route.

