30-31 Narrow PU bed Attachment to frame

[a30roadster]

How does the front of narrow bed pu box attach to the frame? I understand that middle of box attaches to rear crossmember. Thank you. Roger Miller

 

[bruceincam]

One bolt on each side at the very front of the bed. There's a "Z" bracket that is riveted to the box and bolted to the front of the wooden sill and then is in turn bolted to the frame. Access from under the box. And on my box, there is one more bolt about 12" behind the front bolt on each side that bolts through the wooden sill and then through the frame --- the sill is separately bolted to the bed. Access is from under the box just like the front bolt. The last bolt is the one you reference which is over the axle on each side. Access to the last bolt is from outside the box and behind each rear wheel. Six bolts total on my box; three each side.

 

[Dan Partain]

Here's a photo for reference.

 

[a30roadster]

thank you both for your follow up. Very helpful.