Full width stretch body mount question. - JeepForum.com

 
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post #1 of 12 Old 08-21-2013, 05:03 AM Thread Starter
87TPIYJ
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Full width stretch body mount question.

I am in the early phases of gathering parts for axle swap/stretch. I have a locked sterling 10.25. I am looking to do a 78-79 ford kingpin 60 up front. My question is for the rear. For those of you with a stretch and full widths what are you doing with the body mounts for the rear? Will I have enough room not to relocate them? The plan now is dakota springs rear, waggy front. I plan on running 37's I am thinking 12.50, but I do not have my wheels down yet so I dont know my backspacing. I would like to try to suck the tires in as much as possible. I need to know sooner than later, because I am itching to get my rear bumper/tirecarrier built. I have pretty much all the steel I need to complete. I just need to know if I need to make it a stubby or go with normal width? With out having my tires its difficult to imagine. Pictures would be greatly appreciated.


87 YJ, 350 TPI, NV4500, 35x12.50x17, SOA, Locked front, 8.8 LSD rear, Flat skid
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post #2 of 12 Old 08-21-2013, 07:06 AM
TSEJEEPERS
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I am not running full width axles, but I am stretched using XJ springs reversed.
Instead of trying to relocate my rear body mounts I tied my cage into the frame. So the rear body mounts are not needed.
This is about the best picture I have. You can see where the rear cage is tied in and no body mounts in the rear.

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #3 of 12 Old 08-21-2013, 08:42 AM Thread Starter
87TPIYJ
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Did you remove your stock crossmember and weld a 2x4 tube to the frame? Is it flush with the width of the frame rail? Thanks for the picture! Im still debating on how to do the rear bumper. Not sure if I want to remove the stock cross member and extend the frame a couple of inches then weld my 2x4 tube to that. If I did that I could put the shackle mounts on under the bumper. I just need to make sure I have enough room for the top of the tire carrier so it does not hit the body.

87 YJ, 350 TPI, NV4500, 35x12.50x17, SOA, Locked front, 8.8 LSD rear, Flat skid
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post #4 of 12 Old 08-21-2013, 11:55 AM
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I used this write up for my rear crossmember minus the nuts for he CJ mounts.
http://www.jeepforum.com/forum/f12/c...member-442274/
I wanted to put my shackle hangers as high as I could on the cross member to bring it down some.
Are you planning on doing a swing out tire carrier or a swing down?

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #5 of 12 Old 08-21-2013, 12:06 PM
Norcal_chris
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I ditched both back body mounts. Cage tied to frame as well. Cut rear crossmmeber off and welded 1.5x4 .250wall to it with some side fishplates. Shackles mount to back. Before I tied cage to frame I ran around with no back body moubts for a while and didnt have issues.

Ruined a perfectly good jeep.


OCT '13 & OCT '14 YJOTM 2014 YJOTY
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post #6 of 12 Old 08-21-2013, 12:11 PM
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I ditched both back body mounts. Cage tied to frame as well. Cut rear crossmmeber off and welded 1.5x4 .250wall to it with some side fishplates. Shackles mount to back. Before I tied cage to frame I ran around with no back body moubts for a while and didnt have issues

Bunch of pics in my build thread.


Ruined a perfectly good jeep.


OCT '13 & OCT '14 YJOTM 2014 YJOTY
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post #7 of 12 Old 08-21-2013, 07:38 PM Thread Starter
87TPIYJ
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TSE I am planning on a swing out tire carrier. I have started to design the lower half. I got an entire upper already built for $25. My thought is to remove the stock crossmember and stretch the frame 2-3 inches. Then place the shackle mounts (ruffstuff way back) underneath.

Chris: it looks like you would never even hit the stock mounts if you still had them. Is that just an illusion from the pic? What tire size and backspacing do you have?

Here is what I started on today.. 1377135509926.jpg

87 YJ, 350 TPI, NV4500, 35x12.50x17, SOA, Locked front, 8.8 LSD rear, Flat skid
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post #8 of 12 Old 08-21-2013, 07:50 PM
jsawduste
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Trail worthy fab for wheels. They canmake large backspace wheels to give you the WMS you want
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post #9 of 12 Old 08-21-2013, 07:50 PM
TSEJEEPERS
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Looks good!
Keep us updated on the build.

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
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post #10 of 12 Old 08-21-2013, 10:38 PM
Norcal_chris
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My rear axle is back quite a bit. The tire would somewhat get into the top of the body mount. Biggest reason I got rid of them was because I did the rear crossmember and didn't want to remake something to hold the mount. Plus I knew what I was going to do for a comp cut and I didn't want that mount poking out back there.

Ruined a perfectly good jeep.


OCT '13 & OCT '14 YJOTM 2014 YJOTY
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post #11 of 12 Old 08-22-2013, 05:07 PM Thread Starter
87TPIYJ
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Almost done with the design. Still figuring out what to do for the gas tank. 1377212762413.jpg
1377212784550.jpg
1377212799065.jpg

87 YJ, 350 TPI, NV4500, 35x12.50x17, SOA, Locked front, 8.8 LSD rear, Flat skid
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post #12 of 12 Old 08-24-2013, 08:33 AM Thread Starter
87TPIYJ
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So has anyone done a stretch without the full comp cut (kept gas filler and body mounts? Pics?

87 YJ, 350 TPI, NV4500, 35x12.50x17, SOA, Locked front, 8.8 LSD rear, Flat skid
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