The blueprints

Well, the part of finding a good blueprint of a bus took me the most time but I finally found something that will help. It's a blueprint of GM TDH 5300, not exacly the series I need but it's the closes to 5303 I could find. There are just a few differences in those two models that I'll change to create a 3d model as simmilar as 5303.



Here is the blueprint page where you can find out more about GM buses and get GM articulated specifications, there are a few interesing photos as well...

Great resource of fishbowl and GMC buses

Amazing resource with over thousand photos of fishbowl and GMC buses on Flickr. There's also a lot of close up photos of details on the bus like blinkers, wipers and windows... That's exactly what I need for precise modeling. :)

Link

Histoy of GM THD buses

I found web site where you can find out a lot about history of GM buses. There are also a few old b&w photos of GM TDHs which I can use as a reference photos while modeling...
Here is the link