Hey all, new to the forum and new to Oldsmobile’s. I’m working on a 70 cutlass convertible for a friend of mine. Two things that he needs is the positive battery cable, and also, I’m assuming it’s a voltage regulator. It’s bolted to the drivers side inner fender. It has a stud that a small wire from the positive battery cable bolts to along with two other wires. There’s also three small wires that plug into the bottom of it. Would anybody know if the local parts stores may have those pieces, or if not where I would be able to find them online?

Also, would these be pieces that may be interchangeable with the chevelle? Thanks for your time and help all.

 

Here are some parts numbers you can use to search at the auto parts store. You should be able to get a voltage regulator pretty easily.

https://www.rockauto.com/en/catalog/...regulator,4884

If the positive cable is bad then the negative cable probably isn't far behind. Consider going to a local electrical supply company to have new battery cables made. You can always get cheapies at the auto parts store by length and terminal type but I found it's sometimes cheaper to get them made. Plus, it's going to be a better product.

 

Let's not poo-poo the battery cables you can get at the local auto parts store too quickly. Yes, you can go to an electrical supply house and get a cable made, but there's nothing wrong with the higher-end cables you can get at NAPA or Autozone. Just go into the store and tell them you need a positive or negative (or both) battery cable for a '70 Cutlass, and Autozone at least (the one site I looked at) will present you with multiple options, 2 and 4 gauge, and the beauty of it is that these cables will already be the correct length and will have the correct connectors on each end. This is all I've ever done in 40 years of working on cars, and I've never had a problem with an auto parts store-bought battery cable. The most important thing is to make sure that, whatever cables are on your car, they are in good shape and the connections are tight and free of corrosion.

This is not something to lose too much sleep over.

 

The voltage regulator is on the firewall behind the distributor. The little metal box on the fender is some sort of relay, and also the key-in buzzer. Once upon a time on my 70 Cutlass the buzzer stuck and buzzed whether or not the key was in the ignition, so I pulled one of the wires out of the bottom and it stopped.

 

That is the horn relay and power distribution/junction block.

70cutlassguy, why do you think the horn relay is bad and needs to be replaced?

 

Due to the fact that the stud that the power wire from the positive battery cable bolts to is broken off.