Review on Enhanced Rugged Ridge 11231.02 Euro Guard Kit for 07-18 Jeep Wrangler JK, Including Turn Signal and Side Marker Protection by Sam Bhushan

Much easier than the instructions suggest. Larger ones work better if the entire headlight housing is removed (you will need to remove the bulb to do this). Once the headlight frame is centered and barely holding, use the small C-clamps to slowly push down a little, loosen the clamps, move the tallest part and repeat the process until the correct adjustment is achieved. * Once installed, it is almost impossible to remove. So make sure you align it correctly before installing the headlight frame. For small, assuming stock parts are available for the 2018 JK, just remove the front plastic rivet and put the part in place. Replace the rivet and you're done. It's easier with a second pair of hands. Might work on other Jeep models but I've never tried it.