This is for the US version of the troopers, but it does contain a lot of information relating to the following
B Series 4wd system
6VD1 3.2 V6 engine
General Isuzu/Frontera related bits and bobs
It is by no means a spot on guide for the Frontera, but under the skin they are very similar
BEWARE IT IS A 60MB DOWNLOAD
http://www.mediafire.com/?a9m3itm4e8txnz8
P.S. I didn't know where to post it so if the Admins want to move it feel free.