I removed my transmission to replace the rear main seal then put the transmission back in and now no fluid won’t circling and it was fine before I took it out

Hello, did you replace the transmission at this time also? A 1993 Chevrolet transmission does not appear to be compatible with the 1999 model from the listing I see. I'm not certain the steps you took or where and when you obtained the transmission, and how it's installed. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops