My Blazer developed a leak in the transmission. I took it to a transmission shop to have it serviced. He told me that the transfer case was coming off and that is where my leak was coming from. I told him that I couldn't afford the work to be done on the transfer case. So he checked out my transmission and said that it needs to be rebuilt ($2500). It's making a buzzing sound. I can't afford a tranny right now so, i was going to change the seal on the transfer case and try to stop the leak. The tranny isn't showing any signs of slipping at this point. When it does I will look for a used transmission. He told me that I had to find an 89 transmission. Is that true? is that the only type of tranny that would match? Any advice on this situation would be helpful! Money is tight as we all know! Thanks in advance!