After searching for the good price on the strut cartig and shocks. I finally got the KYBs for my 91 245, going to install them when the sky clears. Installing IPD heavy duty rear springs also. I believe the clunking noise on the left front side when i go over any bumps is due to a worn strut.

It could very well be.
Have you checked the sway bar bushings and lower control arm bushing yet?

Inspected lower arm bushing is good and sway bar a bit worn out.

Finally got all the suspension parts on, KYBs and IPD springs for rear. the car is more stiffer which not used to yet. BUt still a minor clunk at the left/F cant be the control arm bushings coz i inspected them and noise will also come if i accel and decel. might just be worn sway bar bushings!!