Heater core assembly: center bolt- Where?

[Isk Stark]

I’ve got all the bolts and nuts off except the elusive one behind the engine. Where the heck is it?? I’ve got the 2.3 if that matters. I just don’t see how you can get a ratchet back there to get it off, but apparently it’s possible.

Any tricks to reaching that final bolt?

 

[franklin2]

1. NOTE

   NOTE: The following step is performed at the lower passenger side dash panel, inside the passenger compartment.

   
   Disconnect the vacuum hose connector and remove the nut.

 

[franklin2]

Remove the nuts and the evaporator core housing (19850)

 

[Isk Stark]

1. ​

   NOTE

   NOTE: The following step is performed at the lower passenger side dash panel, inside the passenger compartment.

   
   
   Disconnect the vacuum hose connector and remove the nut.

This was done.

 

[Isk Stark]

Remove the nuts and the evaporator core housing (19850)

and this was done.

Still can't find the last nut on the firewall. It's gotta be somewhere around the transmission tunnel.

Edit: I ended up using the sawzall to chop the portion of the assembly I could get out and was successful.