Quicklike84fox

So my motor was rebuilt not to long before I bought the car(84 Convertible 5 speed) so I am planning on new suspension for the front and back. Finding a weak selection online, can 87-93 suspension parts be used on an 84 for or do I have to stick with the slim pickins I am finding.

88 orangepeel notch

There are some differences.

Google will give you all the info you'll need instead of rehashing it all here. I'm just to lazy right now lol.

Search " Foxbody Mustang suspension interchangeability" and you'll get all you need.

Good luck

GypsyR

In the process of swapping in a 5.0 into our 1986 2.3 car I just bought a loaded crossmember at a junkyard from a 1991 GT. That got me the V8 mounts, GT struts, arms, steering rack, springs, sway bar, bigger brakes, all that stuff in one shot.
Not a direct answer to your question but you could certainly do the exact same thing with your 84 if you liked. Kind of does away with the great majority of the "will this newer bit fit my older bit" problems.