Hey mate,
The hilux/corona/peugot brake and strut upgrade is a good one. Loads of stopping power for any engine you choose. For the rear in my KE55 I'm going to be using an R31 skyline diff with a falcon LSD centre. For this the diff needs to be shortened a little to keep it legal and needs the mounts changed over. I'm going to be using an EL Fairmont Ghia V8 LSD centre. This front and rear combination will keep the cars original 4 x 114.3 stud pattern. You will most likely need 15" wheels to clear the brakes at the front, although you may get away with some 14"s.
Here's a good guide for the front brake/strut upgrade. I've done this for my car and have converted the struts to coil overs.
http://www.toymods.org.au/forums/showthrea...x+brake+upgrade
Cheers mate,
Sian