When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I had an issue when trying to reinstall the Taillight assemblies back on my F150 after replacing a burned out bulb. I found that the pin receivers stuck to the pins on the light assembly. I had to pry them off and put them back in the bed before the assembly would seat correctly.
We don't know what you have, so you should put ALL the truck's details & history (as much as you know) into your signature so it shows with each post, as this page explains:
Phone apps don't always show signatures, so you may need to switch to a real browser in desktop mode on your phone, or just use a desktop/laptop computer. Put your location (nearest city) in your profile & upload an avatar of the truck. The more pics you post of the truck, engine, wiring, labels, & undercarriage, the more likely we can help you. Not all its details are relevant to these issues, but you don't necessarily know which ones are relevant, so just put everything in now.