69 Cruzin

I put one in my Coupe.

Here is mine... installation  was easy 

Not a ground issue, but probably a bad dimmer switch or mis-wired relay for the low-beams.  Yes, I know...you said new dimmer switch, but that doesn't mean it isn't bad.

agreed. Dimmer switches are notorious for being bad. I would try swapping that out first.
 
 

Thank , for us non technical people . This has made more sense to me than all the wiring diagrams.  

Makes a lot of since. I recently replaced my wheel with a new reproduction. 

Wow!  Almost like twins!  I really like that black hood scoop!  My guess is you have exactly the same paint?  Modern FORD "rub red metallic"??  Excellent color choice!  (haha)  I really like the GT stripe, it breaks up the broad swath of dark red on the side.  I also added the chrome wheel trim, but I'm biased to chrome as you can tell from my wheel selection... Anyway  Beautiful car!  You have great taste!!  LOL

IMO they look naked without something on the side. Very nice, what color is it?

Thanks.Originally it had the black stripe. I really liked the look of JayEstes. 

Very nice! Thinking of going back with the GT strip on mine. What do you think?

69 Cruzin, nice looking Coupe. I like the look of the GT lower body stripe, I would add it to your car, once my Coupe is painted I am putting it on mine.

I've got the same setup.  Stock rebuild on all the suspension, and I put KYB gas-adjust shocks in, which I have been very pleased with.  Only change I made was a Shelby (Arning)  drop on the front - do you have that mod? it lowers the front "maybe a little bit", and a 1in sway bar  which shouldn't affect ride height.
To me, my car doesn't "sit higher in the front", but let's face it, one mans "too high" is another mans, "just right".  If you put in racing shocks, or upgraded springs, or any other mod, your front could be sitting higher. Also, if you have "old shocks" or worn out leafs in back, perhaps the rear is just too low.  A lot of stuff can affect this.  
To me, my car is fine.  But so many guys today though want the front end literally dragging the ground, and rims which vanish up into the wheel wells, that I've concluded I'm kind of a minority.  To me, sitting on 15x7in rims with 235 R60's, and a stock suspension looks pretty damn good.  I've included pics so you can judge for yourself.