The Jimny pulls sharply to the right when braking which tends to imply that the left hand front brake is not coming on properly.
Therefore I decided to strip an rebuild the calipers as they have hard a hard life over the last 3 years.
First I got hold of a Caliper Refurbish Kit from www.biggred.co.uk. - for my Japanese Aisin Calipered Jimny the kit was BRK205131
As you can see it contains the slider boots (therefore is a saving on the Suzuki price straight away!) along with the piston seal ring and piston boots with retaining rings. It also contains some nipple covers.