@hassantaewra
Uncle/ Chacha Iqbal Shahid Suzuki is nowadays not doing such works and as @helper_learner mentioned, he is more into consultation for Tuning/ Performance Tweaks/ Power Upgrade.
Call and ask Irshad whether he is dealing such works or not nowadays. Whatever response of him, kindly share here too for our updated knowledge.
Your case does not seems of transmission issue, please remember that in case of transmission issue ever, go to Specialized transmission/ gear shop who deals exclusively in Transmissions only.
