91 4.0 No gear engaging!

[grisc]

Well, to make a long story short, I have recently swapped an engine in my in my 91 xlt, after finally figuring out how to mate the trans and engine up, to what I thought was a success, I turn it over and it starts up, by the way, not ideling, but as it is still on the lift I engage the shift lever into reverse to see if everything works and nothing, and the same goes for any other gear I put it in, automatic by the way. Is there some kind of vacumn hose or something I am forgetting to hook up on the trans or something real serious? It is the original trans and worked fine before. I am just really stuck and figure if I could find an answer anywhere it would be with the Serious Explorations in this forum, you guys are awesome, any help would be greatly appreciated. Thank you.

 

[TedfromVA]

Any left over parts?

Did not forget the converter bolts? Did you?

 

[grisc]

No, I have the converter fully bolted in and what I thought everything else, does there need to be a certain amount of fluid in the torque converter or does that not have anything to do with that? I just don't get it, can there be any fluid, vacumn, or electrical lines I may have crossed or not hooked up that would be affecting that? I am lost?