[Jesse16]

You don't say what year car but maybe theres no difference. I installed new ones on my car 2 years back after paint and I only remember it being one of the easy steps, just slid them in and maybe trimmed the length a bit. Since stretchy, I think I pushed them a bit tight lengthwise so would continue to fit better if they shrink over many years. The old ones were short an inch when removed as I remember. Assume you have the mating slot nice and clean, of course lube with soapy water is always great when installing rubber parts anywhere on these cars.