6" rear drop coils questions I need advice

[kens65fb]

I have been running 4" drop coils on the rear of my 64 Fleetside for the last 2 years, and I always wished that it was a tad lower

I recently replaced my rear tires (245/45/18) (26.7" tall) with 255/55/18 tires which are 2.3 inches taller at (29.0" tall)

This raised the rear rake considerably, it's too high for my liking.

I already have a small c notch, and the shock relocation brackets and drop shocks installed.

It seems that I have 2 options, 6" drop coils, or air ride, any opinions?

Has anyone used 6" drop coils in the rear, any problems??