How much torque do I need in my dugga dugga

[Steviesam]

I am looking at buying a Makita impact wrench. It needs to be Makita as I am already invested in 5 other tools so have the batteries and charger.

It will be for home mechanics-wheels, suspension parts etc.

There are loads of choices, but I don't know how much torque I need? i know you can get them with 2000nm, but preferably I would have one that isnt tooooo big so it can fit into smaller spaces.

Cheers all.