yeah it would mate, the backs are are smaller and completely different, i got them on the back of my car as i got rear disc, lol

as far as i know the saph 4x4 calipers ar the same as the escort cos ones but the sapf disc are different as far as i know.
the 2wd saph cossie uses different calipers than the 4x4 so dont get them, disc may be different to the 4x4 but im unsure on that.

if ya getting saph 4x4 cossie calipers make sure you get 4x4 disc, as i say, im not 100% sure if the disc on a saph are different to those on a escort cos so ya might be better off just getting disc for a escort cos as i know there fit and if ya buying new disc cost wise prob aint gunna be different.

i was lucky when i got mine, the guy was selling the calipers for £60, asked him about the disc which he said was rusty as they been satin his gargae for ages ( drilled and grooved)and he chucked them in as he was gunna bin them
mate picked them up when he went to trax ( billy bonus, no postage)
got the wire brush in a drill and the disc's clean up treat. and there still on my car now, lol
still pads was a nightmare, it seems there are about 6 different pads that fit the caliper or ones like it.
e.g shap cos, escot cos, scorpio cos etc lol got there in the end, prob being with mine is i didnt have old pads to compaire them to, so if you can get a old pad with the caliper your be able to get the right pad first time insted of 2 trips, refund and then going else where like me, lol, mind i was after mintex pads not uni part lol