I'm looking to purchase a few mating GM weather proof connectors. I'll need both male and female sides for 2,3,4 and 5 pin configurations. Does anyone know where I can purchase these from?

Check with a local GM dealer or a Delco-AC outlet.

Search "weatherpack" on ebay. I dont remember his user id but there is a guy on there that sells all the pieces and parts for these connectors.

not sure if they are out east, but Gregg's distributing sells them in B.C. and Alta.

NAPA can get them, as can any GM dealer.
if nothing else, the junkyard is full of the actual plastic housings, which you could fill with wiring and connectors you buy new. seems that would be an easy way to save a few bucks.

Summit sells them in kits:

Click Here>>> weatherpack fittings (http://store.summitracing.com/egnsearch.asp?Ntt=weatherpack&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=700+115)

Summit sells them in kits:

Click Here>>> weatherpack fittings (http://store.summitracing.com/egnsearch.asp?Ntt=weatherpack&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=700+115)

I've purchased a couple of the Summit-branded kits; and one of the slightly more expensive one from Caspers. Either is worthwhile.

No doubt Jegs and others have similar kits.

Thanks guys!

Here is the kit I was looking at :

http://cgi.ebay.com/ebaymotors/Weather-Pack-Connector-Kit-Weatherpack-418-pcs_W0QQitemZ360130923004QQcmdZViewItemQQptZMotors _Car_Truck_Parts_Accessories?hash=item360130923004&_trksid=p4506.c0.m245&_trkparms=72%3A543|65%3A12|39%3A1|240%3A1318