I have a 90 trans am with a 350 stock and I need to replace my transmission. I just need someone to tell me if this transmission will fit my car before spending $1100. If I need anything extra please tell me thanks.
http://www.ebay.com/itm/700R4-4L60-Factory-Replacement-Stock-Transmission-400HP/320733225894?_trksid=p2045573.c

 

With this seller, I think the idea is you send him/her money along with the year, make and model of the car you want a transmission to fit into. They find a core that will work with the information you provide, they rebuild the core and send it to you (along with the other stuff listed. You get to keep your old transmission.

"Built to order"....my guess is you can specify shift kits, Corvette servos, etc. if you want any upgrades.

So yes, it will fit provided you provide them with the correct info they ask for.