Another Bloody Radiator Fit Question - Need Your Expert Opinion!

[rowdy11]

Hey folks:

I'm in the midst of installing a new radiator with new mounts onto a new radiator support. I'm LS Swapping so this radiator is a DeWitts, but this question falls into a broader category of getting any replacement radiator to fit properly to the support, so I'm posting for all.

My question: how tightly should the radiator actually fit against the support itself? I've read a ton of threads on here about virtually everyone struggling over the years to get radiators to properly fit. I've done some initial trimming of my rubber mounts to get it to fit the way it is now...it just seems to be too far from the support still (about 5/8 inch away but the gap looks huge.

Should I trim the mounts further to move the radiator forward (closer to the support? I don't want to butcher the mounts so much that they don't support the radiator they way they were designed.

Thanks for the advice!