OK so I have a 17 F150 - non raptor. and My neighbor down the road has a 2018 F150 non raptor but also has an expedition. anyway the conversation the other day turned to a question about trading out the leaf spings for coils. which I thought was odd at first but he started down the road of a Raptor rear swap.

So I have to ask this group since I've seen 2 different answers and the parts shops don't seem to agree either.

2017 Raptor rear suspension - Leaf Spring?

2018 Raptor Rear suspension - Coil spring? Fairly certain this is a yes.

If so does the 2018 Raptor also have a different suspension arm or knuckle vs the 2017.

 

Rear Suspension on the Raptor at least through '19 is Leaf Springs.
Coils came after 19 but I'm not sure what year

 

Rear coils came in 2021.

 

So when I see a coil spring rear 2018 raptor that's aftermarket?

 

Yup, my 2017 had and my 2020 has leaf springs.