[unruhjonny]

I'm chiming in here incase this interests anyone;
For a LONG time, I had scavenged for original parts, and somewhere along the line I got a really nice looking side post negative cable;
It has an extra ground wire, and is stamped with the following: 8915800 DT
It appears to be approximately 25" long.

Knowing the types of vehicles I scrounged parts off of, I would have to think this is an original Pontiac application part.

[John V.]

Mike, that is kinda funny. I understand the electrical circuit logic but seriously? GM couldn't source enough 30A fuses??!!

Curious that the repair relates to the A/C application. Since the 30A inline fuse was used with and without A/C, did A/C tend to overload the circuit while the non-A/C did not? Just curious why that would be.

unruhjonny, that cable might have had other GM usage, I sure don't know.

But googled it and found this indicating it was the OE negative cable for the '77 Cutlass.

https://classicoldsmobile.com/forums...-wanted-58143/

Couldn't find anything more on it at GMPartsWiki.

Similar to the one I have with the LG pick code, the DT pick code seems to identify cables that were OE to whatever application (wasn't able to identify any particular application for the one I have) while the Service Replacement cables seem to lack a pick code, which makes sense because the pick code was only useful during Final Assembly, didn't have any use for Service Replacement parts.

[Held for Ransom]

It may have easier to tell a customer that it was out of stock and the new replacement was this...
I can't comment on the poor connections when it came to AC. May have to do with the current draw when it starts up, much like an air compressors' initial start up.