I am trying to put original suspension back on my 1990 GTA. Does anyone know where I can get a list of all originbal shocks, struts, coils etc, that were installed on my GTA at the factory? Thanks

I am going to redirect this over to the "History-Restoration" board. Hopefully you can get some info there as well.

Everything should be the same as any other WS6 Firebird of the same vintage. 36/24mm sway bars, and BZW or BZX springs. Check your RPO codes, or hit compnine and run your VIN to get the spring codes. For the shocks and struts, if they were anything special, it doesn't matter now because the stock parts would be worn out and aftermarket replacements are probably higher quality. Pick any aftermarket performance shock/strut and you'll probably be happy with the performance.

I would recommend picking up a service manual for your car. Not a haynes/chiltons repair manual, but an actual GM service manual. You can find them on ebay for about 50 bucks. It should list GM part numbers.

Shop manuals don't list part numbers.