IMO....... A 90 of that age "may" have the smaller piston calipers and, if so, you are best to just change to the STC1262/3 calipers that were used on all 110s and later 90s up to 1994. 26% more braking force. It also makes finding pads and such easier in the future as it is super common.
Get OEM calipers and pads.
Pissing people off on the "net" since 1983.
Land Rover. Turning owners into mechanics since 1948.