We have the same front and rear brake pads as a '91+ Trooper, a 98+ Rodeo, Rodeo Sport, Amigo, Honda Passport, and a '02 Axiom. Just make sure you get ceramic pads, which I believe were stock. They're the ones that last 96-128K km (60-80K miles) and have no visible brake dust.
My history with ceramic pads-
Rears replaced at 64K and 136K miles.
Fronts replaced at 80K and 159K miles.
The Isuzu part numbers for the brake pad kits are-
Front- 8-97035-257-1
Rear- 8-97035-266-0
Mark