Been struggling to get my deadlift form right for my entire lifting career due to lower back problems but I feel I'm finally seeing the light at the end of the tunnel. My lower back fatigues quickly when deadlifting currently, but I'm unsure if that is due to a technical issue or that fact my lower back is just weak. I've linked to Youtube video below, if anyone could have a look at it I'd appreciate it.
Due to being 6'3" I'm struggling to sit back enough and get my shoulders behind the bar, even with the bar starting out reasonably far in front of me. If I widen my stance slightly I feel this is better but I lose leg drive so unsure how to continue. The weight in the video is only 110kg, I'll record a heavier set soon as the bar being light I struggled to pull any slack of the bar without pulling it off the ground.
Apologies for shaking at the start.