My torque converter takes a really long time to shift into overdrive then more time to lock in. do I need a new one? also, 4wd isn't working right, front shaft is spinning but the front wheels aren't working, anyone know about that? id appreciate any helpful omments, thanks guys!

 

The issues with your 4wd may be tied to your vacuum system. Do your vents function as you want them? If you vacuum pump has gone out its not hard to rebuild. When I bought mine the blend door wouldnt "follow direction". I was lucky enough to just have to replace vacuum line ($2 worth only used about 50 cents worth). Now it works as it should.