I'm interested in an electric jack for my TT, and I've read many of the posts here on RV.net, but I have one question. Where do you measure to determine what size tube diameter to buy? On my current jack the bottom tube that moves is 2 inches, but the upper tube that gets bolted to the frame is 2.21 inches. How do I make sure I buy one that will fit?
You measure the upper tube diameter as that is the part that has to fit thru the hole in the tongue.
Post moved from Towing to Tech Issues forum.
Barney
2004 Sunnybrook 30FKS TT
Hensley "Arrow" 1400# hitch
2002 Ford F250 Super Duty, 7.3L PSD
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Just picked up 2008 Jayco Eagle 322FKS. Also purchased a new Barker 3500 lb. power jack from Mantelli Trailer off ebay. (Great people to deal with). http://cgi.ebay.com/ebaymotors/ULTRA-FAB........072QQihZ020QQitemZ300218377787QQtcZphoto Cost of jack was $177.50plus shipping. Had it in 3 days. It fits perfectly in the Jayco hole that the manual jack came out of. Simple installation. Just hook your trailer to the tow vehicle, raise manual jack, remove 3 bolts, pull old jack, drop in new jack, reinstall 3 bolts, run power wire to positive side of battery (ground is the bolts holding jack to frame) and you're good to go. If you don't need the 3500 lb. jack, get it anyway. You can never have enough power.
* This post was
edited 04/25/08 08:03pm by an administrator/moderator *
Since you already know you have the larger tube at 2.25" go ahead and get the larger one although both will mount and work the same. And don't skimp on the lift rating get the 3500lb the cost difference doesn't matter in the long run and you won't be burning out the smaller one or upgrading later on. I just purchased a (FleeBay) rebuilt UltraFab 3500 for $109 shipped to the door. In looking it over you couldn't ever tell it was ever a rebuilt, it works and has the same warranty as a new a new one.
04/04 F350 Dually Lariate, 4x4, CC, LB, Auto, Firestone air bags, Bilstein shocks, custom on board air system, cat back 4" Aeroturbine muffler. Two place over head ATV rack, third ATV in the bed.
Four Winds 27BH
I am thinking about installing an electric jack also. I am interested in the Barker brand so I called them to ask what size tube I needed. On my Rockwood Roo the tube above the tongue is 2.25" and the tube below the tongue is 2.0" and the Barker people told me I needed to go with the smaller tube size as that is the size of the hole in the tongue. I know this is exactly opposite what another poster in this thread says. I think I will pull off the manual jack and measure the hole before I buy the new jack just to be sure.
Chris and Jane and two boys who use a tent
2007 Rockwood Roo 23B
2006 Dodge Ram 3500, 4x4, Crew Cab, 5.9 diesel
1996 Harley Davidson Electraglide
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