I have a 93 Thunderbird supercharged. When you go to put it into any gear to take it out of park, it shudders for a second. Can anyone give me idea about what's wrong with it?

 

Possibilities are motor mounts, transmission mount, transmission engagement issue or an issue with the engine maintaining idle speed. How does the engine and transmission perform otherwise?Even in 93, there should be a diaphram which works as an AIC and allows more air into the manifold to maintain engine speed. Did you check the transmission fluid? Engine mounts can be checked by goosing the gas pedal while a firm brake is applied. Do this in drive and reverse. If a mount is bad, you will see the engine move quite a bit.