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Old 10-08-2004, 04:51 PM   #1 (permalink)
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High Amperage Junction Blocks

Im in the process of moving the battery on my K5 from the core support to the back and am looking for some sort of High-amperage junction block that I could run a 00 gauge wire to and go off of that to the starter, winch and other various high amperage accessories. So far the only thing I have found rated over 250 amps is car audio junction blocks, but those dont look like they would hold up too well to rock crawling. So what have you guys used? I really dont want 2 or 3 00 gauge wires running front to back to the winch and starter, and there isnt enough room to run the wires off the back of the starter.
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Old 10-08-2004, 05:11 PM   #2 (permalink)
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try this site,

www.12voltguy.com he has some nice stuff, and could probably help you
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Old 10-08-2004, 05:14 PM   #3 (permalink)
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High-end car audio shops should have stuff like that.
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Old 10-08-2004, 06:36 PM   #4 (permalink)
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Look for part # 7915k15 on www.mcmaster.com

http://www.mcmaster.com/nav/enter.as...pe=&catnum=110
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Old 10-08-2004, 06:47 PM   #5 (permalink)
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I used marine stuff from Blue Sea wiring systems. There VERY beefy. 3/8 bolt and a very well made base. My catalog shows max amps @ 1700
http://www.bluesea.com/default.asp
They come in hub and non hub junction style:






That is 600 strand 0/1 with extra thick lugs.

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Last edited by Old Scout; 10-08-2004 at 07:06 PM.
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Old 10-08-2004, 06:49 PM   #6 (permalink)
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You could also use a small block of wood or plastic with a lag bolt in the back of. Then place another thin board or piece of plastic on it and screw it to the sheet metal.

I did see a very cool junction block on a LT1 caprice. It had 2 terminals that were about 3/8" bolts and it had a cool plastic cover that snapped over.

I have a junction block off a s10 in my blazer. It only has a 1/4" and #10 stud though...

You can also look into using something like this for a junction block
http://www.bussauto.com/products/powerdist/
or
http://www.napaonline.com/cgi-bin/nc...rfnbr=15625466
but I don't think you will want either of those for the winch.
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Old 10-08-2004, 07:00 PM   #7 (permalink)
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Bulkhead studs:
http://www.boatus-store.com/webapp/w...118&storeNum=9

High amp distribution and covers:
http://www.boatus-store.com/webapp/w...118&storeNum=9
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Old 10-08-2004, 07:08 PM   #8 (permalink)
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Quote:
Originally Posted by bluesman2a
The winch will pull 2x there amp rating!
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Old 10-09-2004, 09:36 AM   #9 (permalink)
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Check the fenderwell of any 80's Cadillac for a red box about 1x1x3" -- inside it is a simple one-pole junction, and it flips/clips shut to prevent shorts from the top, too.
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Old 10-09-2004, 05:59 PM   #10 (permalink)
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Quote:
Originally Posted by smitrock
try this site,

www.12voltguy.com he has some nice stuff, and could probably help you
Thx

I have 250 amp firewall pass through studs or 400 amp single stud non pass.
I like those 1700 amp studs!
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Old 10-10-2004, 08:56 PM   #11 (permalink)
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Wrangler Power Products sells 'em as well.
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Old 10-11-2004, 04:30 PM   #12 (permalink)
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I ended up ordering the Blue Sea ones, Those were the highest rated ones I found and I could order them online so I went with them. Thanks for the help.
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Old 10-23-2004, 11:22 PM   #13 (permalink)
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This is the caprice junction block I was talking about.



There is a quarter for scale. The studs are 10mm. I bet you could put alot of current thru there and I like the snap cover. There is a 4ga. wire hooked up to it and some extra wire someone added on.
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Old 10-24-2004, 10:32 AM   #14 (permalink)
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Call me a cheap bastard....I used a spare toyota motor mount for my junction block...the bottom has two bolt holes, a rubber insulator, and a flat metal plate with a nice tall bit of thread sticking off of it...
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Old 10-24-2004, 02:01 PM   #15 (permalink)
 
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Look on CUCVs. Nice heavy junction blocks located on the passenger side fire wall. That's what I'm using with 00 stranded cable going to my rear mounted battery(s).
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