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Old 08-25-2007, 03:09 PM   #1
dannykaren
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Join Date: Apr 2007
Location: lubbock
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M.O.C. #7076
cross member on frame

I bought the JT Strong arms for my 07 Montana 3585SA. I didn't have any problem installing them on the front frame but I can't pull off the underbelly in the back to find out where the cross member is. Does anyone have any suggestions.

Thanks
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Old 08-25-2007, 03:29 PM   #2
Broome101
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M.O.C. #1832
look for the screws that hold it up they are in cross memebers
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Old 08-25-2007, 04:46 PM   #3
nailbender
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M.O.C. #5811
When I installed mine several months ago, I was able to locate the cross member by pushing and tapping on the underbelly. I had the underbelly down today measuring for a bike carrier and noticed I was about 1/8" off from the center of the metal with the screws. There actually is not a true cross member in the rear. It is a metal floor joist with 1 1/2" wide angle iron on the bottom. The center of the angle iron is 3" from the edge of the rear cap.
I took a couple of pictures today that might help you, but forgot how to post them. Will try again to post them.
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Old 08-25-2007, 06:31 PM   #4
nailbender
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The angle iron on the right side is the bottom of the floor joist.
Hope this helps.
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Old 08-26-2007, 06:08 AM   #5
bsmeaton
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M.O.C. #6109
I got some tips from Mudchief - when you locate the crossmember, use a Knife to cut a "U-shape" slit in the underbelly in front of the crossmember, enough to get up there with a wrench and nut. Once installed, seal the slits closed. I used the black firewall sealant from NAPA.
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Old 08-26-2007, 07:01 AM   #6
Ozz
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Yes, I did that on the rear waste tank when I put my Vena tank monitoring system in.
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Old 08-27-2007, 03:54 AM   #7
dannykaren
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M.O.C. #7076
Thanks everyone. I got them put on yesterday. I appreciate your help.

Danny
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