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Old 08-12-2016, 12:58 PM   #1
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1966 26' Overlander
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Installing a new electric jack

I am in the process of replacing my 50 year old manual jack on my '66 Overlander and I have a challenge. The original jack has an outer tube diameter of 2". Therefore the lower support plate on my trailer has a 2" diameter. The new electric jack has a diameter of 2 1/4" so I have to enlarge the hole by 1/4". The problem is I'm no metal worker. I'll bet that there is an easy way to do this but I'll be danged if I know. Can someone explain to me how to enlarge the hole?
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Old 08-12-2016, 01:15 PM   #2
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You can get most electric jacks in either tube size.
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Old 08-12-2016, 01:49 PM   #3
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That is the easy way.

If you are stuck with that jack you could get a plates cut with 2 1/4 in holes, burn out the existing holes and weld the plates in place at the lower hole while the jack is bolted and perpendicular to the tongue. You will not be able to just enlarge the holes and maintain the tight fit necessary on the lower hole by just burning. The upper hole is self aligning because of the 3 bolts.
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Old 08-12-2016, 02:32 PM   #4
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ON my 76 AS there was a sleeve in bottom hole just knocked out now 2x1/4 no mods needed.
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Old 08-13-2016, 02:12 PM   #5
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Thanks.
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Old 08-13-2016, 02:14 PM   #6
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Now I just got to figure out how to get the electric lead from the front of the trailer back to the battery in the trunk in the rear. Anybody have any thoughts?
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Old 08-13-2016, 03:56 PM   #7
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Originally Posted by ChuckZ View Post
Now I just got to figure out how to get the electric lead from the front of the trailer back to the battery in the trunk in the rear. Anybody have any thoughts?
Just a couple of very quick thoughts - please discard if foolish!

(1) Run news wires in small diam. plastic conduit clipped as needed to the belly pan.

(2) Presume a battery line should run right from your batteries at the back up to the umbilical cord - can you tie into the lines there someplace up near the front? Might be an issue of wires capacity though, I'm not sure. If you went that route you could just use an in line fuse someplace up near the jack.

(3) don't wire to your coach battery. Just put a seven pin plug on the jack connecting to the grnd. and +12v wires and connect to your tow vehicle for power as and when needed.


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Old 08-13-2016, 06:20 PM   #8
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Also wired into hot wire for break away swt with in line fuze in jack wire.
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Old 08-13-2016, 06:40 PM   #9
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My previous jack just died one day, I had gkids and could not unhitch easily( i had the backup tool) so just drove the whole unit over to trailer guy, took him 15 minutes and off I went.
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