I'm looking for a motor for my passenger window. Anyone?

87 Conquest TSI with 64 Original Miles - $3000 In Maine Last Title issue date of 11/05/01 with 46950 miles at that time.   Car is in Excellent overall condition and goes great The car was 100% stock when I got it other then a Ractive muffler I have done some light mods to the car with help from Starquest.club Members All the original parts will also go with the car in case you want the stock setup back.   The car now has a TEP overhead charge pipe powdercoated black With TXS HPBC (boost control

i didn't know where to post this but can someone give me a good starquest parts website or something of the sort?

I found out what had been making the loud thump noise when shifting from forward to reverse... the gear on the rearend that mates to the torque tube shows a lot of wear. The shaft looks ok but do these need to be replaced as a set? And does any one have a part# if the gear was available new I would like to replace it. should I put a new pinion seal in at the same time even though it wasn't leaking? Thanks