Electric Sliding Rear Window

Does anyone have any information on these? I bought my truck used and it has one but it has a hard time opening. I can gather the gear is plastic and it is slipping on the worm gear on the opening cycle. It closes fine. There was a manufactures sticker on the window itself, but that is long gone. Thanks MU

 

it may be a CR Laurence?

http://www.aztrucks.com/mfg/C_R_Laurence.html

 

Yes - it's almost certainly a Laurence unit. Laurence is the only manufacturer to have mass marketed electric sliders for pre-2005 Tacomas.

I'm surprised to see that 1995.5 - 2004 Tacoma POWRSlider electric sliders are listed on Laurence's website again. A year or two ago it appeared that they'd dropped all Tacoma power sliders from their line-up ...