Those "Load Equalizers" ARE resistors.

Yes, (first post) you install them across (parallel) your bulb socket. There are different sizes (values) to emulate the different size bulbs. Make sure you get the right ones.

As for mounting. You do have to be careful not to rest them against plastic. If you must, make a simple little bracket to mount the resistor to (aluminum) with a long end and a hole in it. Mount somewhere to an existing screw.

At a show recently, a fella' had all LED's and ended up making a central mounting plate for 10 resistors. The plate was a slab of aluminum heatsink (finned). Looked danged nice!