I cant say how you do it but if Ford say 3 years I'd get a garage to do it. I had a mate with 3.0l Capri where it broke on the M1, not nice. Why car companies don't use chains I guess is to pass on cost to us & money making in spares.
JohnV6 2022 CX Plus Four 2025 Renault Scenic Alpine etech "Yvette"