I looked at a mates '81 model and they were different,they had PBR stamped on the caliper. It's for an '85 model, it has the square pads not the pads with the 'birds beak' on the side of them (ie, 120y).
DD, thats the first thing i thought of but.................. my local nissan spare parts distributor is very unhelpfull in 1200 parts, obvoiusly he's not interested in the older older models, its like pulling teeth asking for parts! it sucks!!!!!!!!!!!!!!!
tidy_1200 try BigE(ernie) he is the authority on performance A-series and a damn good bloke too! he is a member on here do a search in in members, 2nd from the bootom in main menu. he'll sort you out!