Yep just one listed , had a look at the parts catalouge ect just says one spring there's a hole in the top of the off side caliper for it ,on the other caliper there's a a bracket for the n/side flexi brake pipe stop it creasing ,mine has broken off so when the new calipers go bk I will fabricate one , I can only think because they both float ect the return spring pulls it bk then realys it though the handbrake cable which then pulls the opposite caliper sorry I will tk some pics ,working nites and trying juggle a p6 it can be tricky lol especially when everything involves heating everything up to part it lol good fun though certainly leading a lot lol