Drove my cousin's 110 today and noticed a weird vibration around 20–30 km/h when pulling off in 2nd. Smooths out after 40km/h. Could this be a U-joint or driveshaft issue? Or maybe just old tyres?
Yeah machan, that kind of low speed vibration is often a worn U-joint or slightly bent driveshaft. Check for play in the prop shafts even a small wobble can cause that. Also look at rear axle bushes and tyre flat spots if it's been parked long. Start with U-joints cheap and easy fix if that's the issue.