Everyone, please make note of the following part numbers. For the much discused (and field tested myself) dual battery set-up. The required solenoid and oil pressure (Hobbs) switch are both available at NAPA. The solenoid is part number ST95, 80 Amp, continuous duty, 3-terminal, 16-20 ohm coil. The controlling switch is part number OP 6620, 1/4" NPT, normally open (i.e., no pressure), closes at 2-9 PSI. (This is what is commonly known as a "Hobbs" switch. The Hobbs name is used generically for hour meters, which are most often controlled by a pressure switch. Look at an hour meter 99.9% are made by Hobbs).
For those that want to do more research on solenoids, try www.colehersee.com
. Cole Hersee makes high end electrical components for heavy transport, industrial and marine use. Their web site has some excellent reference material, including a whole catalog, in PDF format, of solenoids.
For those that have been paying attention, CJ Dave referred to Cole Hersee fuse blocks as the ones to use. Listen to him, forget those overpriced GM type fuse blocks. You can buy the Cole Hersee fuse blocks from JC Whitney (it's not in the catalog, only online).
So please write these p/n's right on your monitor or keyboard and you will always have the answer to this board's top five questions.
P.S. I just ran this post through the boards spell checker, kind of a laugh.
1968 CJ-5 225 V6/T14/18/27frt/44rr
If life gets boring, risk it!