Just a quick observation, in one of your other posts you said that you were trying to outfit your Maxim with "time period specific items." Since LED emergency lighting didn't exist in 1989, are you sure that you want to go that route? If you'll be using it for fire duty such as an industrial plant then by all means change out the modules, but if you plan to show it at musters/parades etc, there may be some who criticize the non-correct appearance. I understand that was the last year of Maxim production so you have a pretty unique and desirable truck. At the end of the day it's your truck so do what makes you happy, but just think of a 55 Chevy chief's car with an Edge bar. Good luck with your project.