Firewall Junction Block 1984 K30
 

I'm restoring a 4x4 K30 and I noticed some pictures show the firewall junction block with a connector between the studs (like in the picture) and some don't. What's up with that? Is it necessary? Thanks for your replies.

Re: Firewall Junction Block 1984 K30
 

every truck ive had except for the diesels had them thats what connects to those inline fuseable links attach to

Re: Firewall Junction Block 1984 K30
 

Ahh, that would explain it, mine was originally a diesel (now a 454).

So it's not a fusible link, but basically a bus that connects the two studs and interconnects all the cables attached? So I can fabricate any metal plate and drill it to fit the studs, then attach cables to both sides? Somehow that makes me nervous.

Re: Firewall Junction Block 1984 K30
 

The metal plate connecting the studs from the factory has a 12g wire attached to it. Quite often I will loop a fusible link wire to connect the 2 studs.

Re: Firewall Junction Block 1984 K30
 

Yes, you can make your own plate.

If your restoration is practical instead of perfectly year correct, you could use one of these off of a 90s era Chevy/GMC pickup. All of the studs are connected via a hidden buss bar. $5-10 with the wires at the Pull-a-part around here. Just put it in the same place the original 2 stud version goes.

Re: Firewall Junction Block 1984 K30
 

its a power side so it has to be insulated so the power wires can attach without grounding out... Im sure that Dorman makes something or theres something where they sell marine and suto electrical stuff here's the one on my only gas job left 1979 bare bones truck and i stand corrected the green backround is an 86 military issue CUCV and this is the one on the firewall