Crutchfield shows Z-1 fits in F-150, but not in 350/450. Does anyone know why and possible workaround?

It fit in my 2004 F350. I had to do some trimming with a dremell to get it to fit in the dash. It was a pain, but it worked.

Good luck.

I have a 2006 f250 super duty diesel 4x4 with the fx4 pkg. I just installed it yesterday and it fits perfect. there is an installation kit yoy can purchase form tweeters or sound advice as it is called where i live. cost of install kit 20 bucks. It looks great, not cutting drilling sanding nothing.
hope this helps you out