Coming from a Body Building background I have started experimenting with powerlifting recently. I especially like deadlifting a lot and want to improve my maximum weight for singles and doubles.

After I improved my technique during the last weeks it became obvious, that my grip strength is my main sticking point. I can lift 140kg twice, but the second time I almost drop the weight because my grip is too weak. Especially the hand where the fingers point towards me fails.

I am also able to do a single lift with 150kg using grip support, but could not do it without.

How should I train my grip strength to align it with the rest of my body? My goal is to lift as much weight as possible without grip support. My only add-on are lifting gloves.