Ok here goes; Kamani is called Leaf Springs in english and all leaf springed vehicles have a shock absorber on each side.
A vehicle with all 4 leaf springs (Toyota FJ40, CJ7 etc) will have a shock absorber also and the ride will be much stiffer than otherwise.
The other type is the Coil Suspension, whereby there will be a big Coil spring over the shock absorber. Late model Hilux, Vigos and almost all pickup trucks will have front coil over shocks and rear leaf springs due to the ability of carrying load.
Late model SUVs have all around coil suspension (95 LC Prado, new Prados, LCs, LRs etc etc). The coil suspension gives you a smoother ride, enabling you to go faster off road, whereas leaf spring suspension makes the ride hard and bouncy, so a fast offroad drive can be quite a pain.
Leaf springs however allow you to carry much more load. A loaded hilux has a better ride than an empty one, so most people put dead weight in the dala to get the balance.