Window Regulator Kit

[redfalken]

I'm going to be putting on some new window sweeps and really need to rebuild my front window regulators. It takes almost 1/4 turn before they engage. I have new plastic window rollers to install and will get the kit shown below. Just wondering if this usually cures it or do the teeth on the gear for the arm mechanisms also get worn?

I'd rather do it for $21 per door for the kit than get a whole new assembly for $100 each. Any tips or advice appreciated!