Review on 🔦 Top 10 Headlight Adjusting Assemblies Compatible with GM Part Numbers 343543 and 343555 by Brandon Frogge

Nylon fits perfectly if you have the original screw, I recommend using it for refilling from the back. The reason is that Philips head is not number 2 on the reproduction. And the replica has no launch shaft in front of the conical threads. After threading, install and use the included screw. Set it to the same length as the original (you should start from the original position and look at the wall settings for the spotlights). Repeat for the next controller. Before repairing the second lamp, check the setting for the first lamp. Don't neglect the 25 foot check. If your lamps light up, it could cause an accident. If in doubt, have it adjusted professionally, repairs are an expensive part of lamp adjustment.