I bought a pair of window regulators off of ebay for around $11.00 + $20.00 shipping. (roughly). I installed them on my samurai.

 They have both malfunctioned in less than 4 months.  They won't work properly because the gear slips on the teeth. So here's a heads up. Stick with the factory window regulators. They are much sturdier. The knock offs are flimsy and bend or stretch or something because they stop working. They have excessive play at all the joints. Junk!!!

-Adam

My dad has gone through 5 drivers side regulators in his Sidekick.  He's tried factory replacements, salvage yard parts, and a couple off e-bay and they all end up with the same problem.  The cable guides on the plastic spool break and the cable gets all tangled up.  What we finally did the last time was buy an electric regulator and managed to modify the door to get it to work.  Just a hint though...  I was having a lot of problems getting the electric regulator to work until I realized that the glass was binding in exactly the same place it would bind with the manual regulator.  Turns out the track guides were bone dry.  A few squirts of silicone lubricant to the robber and the electric reg works like a charm.

My dad has gone through 5 drivers side regulators in his Sidekick.  He's tried factory replacements, salvage yard parts, and a couple off e-bay and they all end up with the same problem.  The cable guides on the plastic spool break and the cable gets all tangled up.  What we finally did the last time was buy an electric regulator and managed to modify the door to get it to work.  Just a hint though...  I was having a lot of problems getting the electric regulator to work until I realized that the glass was binding in exactly the same place it would bind with the manual regulator.  Turns out the track guides were bone dry.  A few squirts of silicone lubricant to the robber and the electric reg works like a charm.

I read that trick here somewhere. I consider that regular maintenance now. I was also thinking of switching to some different screws like maybe allen heads or better yet torx so I can tighten the regulator a little better so it doesn't shake loose and lose adjustment. Maybe a little thread lock too. The screws are easy to strip and once you've had them out, they don't seem to tighten and well as before.

I'll be reworking my doors one of these days and that's on the list as well as abs door panels, a couple of seals here and there  and maybe some stronger handles and cranks like aluminum ones or something.

  It's about that time again. Gotta get up at 1:30 a.m. 

-Adam