帮助速度或变速箱

I am looking for a manual to build a speed or transmission box of a Dodge Caravan 88, from the long one, the engine is 4.0, it is automatic, 6 -cylinder, a mechanic according to me, but when I went out to do the second test, the truck no longer entered any speed, and did not give pa a front or pa Of speeds or the transmission box, I do not know what is called, I do not know much about the subject, well the mechanic wanted to knock me a billion要再次修复它，绝对将其拿走，我已经保留了它，所有人都没有武装，我已经从牧场的机制中打扰了我，我想自己做，请帮助我解决这个问题，我留下电子邮件（我留下电子邮件（我留下电子邮件（我留下电子邮件（我留下电子邮件））我要事先感谢您提供的任何帮助或手册，使我能够触及。