Dimming issue would go away if you did the relay conversion.
There is a member on here that sells kits or you can get them on ebay. Probably the single best modification you can do to improve your lighting. It will also improve the interior lighting and dash lights.
http://www.forabodiesonly.com/mopar/showthread.php?t=216514&highlight=headlight+relays&page=7
Good luck.
