Re: 1965 coil springs - spacers or replace
As said above, V8 equipped 65-66 Mustangs shipped with higher spring rate parts since a V8 weighs more than an I-6. Just start with stock V8 springs. I'm assuming you still have 14" wheels(?).
Besides, while you're under there, consider relocating the UCAs which typically drop about 3/4 of an inch anyway; google "Shelby Drop" or "Arning Drop" (Klaus Arning was the engineer that figured it out for old Shel' back in the day). One of the best things I did to improve my '66 V8 ride. Export Brace was the other.
1963 1/2 Galaxie 500 Fastback; 390, 4 speed "Z-code" - in the family since new
Last edited by pkevins; 08-28-2019 at 07:42 PM.