I need to know how to get the bolts out of the motor with the firewall in the way?

 

Drop the back of the trans and get ~3' worth of extensions and a good wobble socket set.

 

When changeing motor. Do you need to pull motor transmission and transfer all together on 1998 4wd

 

Not necessarily. It can be a challenge to get them out together without pulling the hood and radiator support.

 

the hoods off and raiator is out just trying to find the easiest way to get the motor out

 

If you have an engine hoist that can lift up pretty high as well as an adjustable engine load leveler, it should all be able to come out together. I would still drop the transfer case off from underneath first. It all depends on how you want to do it. There are other threads out there where others have said how they have done it in the past.