I have bought a new heater core and tried to get the heater box out, but am bogged down. Haynes has crap instructions when it comes to the heater core and box. It claims that you don't have to take the dashboard out, which is great, but I am now stuck at trying to find the bolts/studs/nuts are that are attached to the firewall to take the heater box out. Where are these things? Haynes says 'look at illustration' and there isn't one...just a blown apart dwg that shows all the parts in the heater box.

Help!

98 Ford F150 XLT
68 Triumph TR250

When looking for a reason as to why things go wrong, never rule out sheer stupidity...