I can't find a source for the rear gate weather stripping, anyone found a place that sell it or found a decent replacement?
Mine is starting to leak at the top of the glass and the bottom is swollen from the old oil spray.

 

LMC Truck but you may have to look under Chevrolet - S10 Blazer instead of the GMC.

Should interchange.

 

I've look at lmc and they have it on the diagram, but it's grayed out and there is no number for it. They have the end gate seal for the 95-01, nothing for the 83-94.

 

GM Parts Direct lists the part number as 15986979, but does not show a price, so it may not be available from even them. A junk yard might be your best bet.