I have a 83 22r I am trying to install in my 87 chassis. I have the tranny stabbed in the tranny and 2 bolts in the tranny. But I cant get the engine on the motor mounts. I can get 1 but if I get 1 I cant get the other, is there a trick to this? Also, I was told all the harneses and wiring would be plug and play but a lot of the harneses on the 83 engine done seem to fit any on my 87 chassis just a few, whats the deal?