frame stiffeners
#16
Seasoned Member
Joined: Apr 2009
Posts: 344
Likes: 0
From: fresno, ca.
Year: 1991
Model: Cherokee
Engine: 4.0 liter h.o.
#17
Sorry I missed the thickness....
They are 3/16" thick...I like the angle iron method also but we take it 1 step further by bringing them back up to floor level and then going 1.5" onto the floor area to spread the load rather than pinpoint the load.
#21
CF Veteran
Joined: Jan 2010
Posts: 1,117
Likes: 0
From: j-burg NY
Year: 1996
Model: Cherokee
Engine: 2.5l 4 cyl
yes, Dan "HENDO" Henderson is a UFC fighter,he is 5'11'' abd 185 LBS," and has a 25:1 win:loss record. has won both welterweight and heavyweight titles, here is a pic of Dan "HENDO" Henderson,
#23
CF Veteran
Joined: Jan 2010
Posts: 1,117
Likes: 0
From: j-burg NY
Year: 1996
Model: Cherokee
Engine: 2.5l 4 cyl
yeah i was going to have Dan "HENDO" Henderson make them for me no need for a jack to get them tight to the frame..i would use 3/16th or 1/4'' for frame stiffners just to be safe.. but thes just my 2 cents
#24
Seasoned Member
Joined: Jun 2010
Posts: 360
Likes: 0
From: Central Washington
Year: 91 xj, 93 xj, 93 zj, 94 zj
Model: Cherokee
Engine: 2x I6, 2x v8
So would 1/8" even be worth messing with? I've got some of that erector set type angle (lots of holes to weld through) and I believe it's about 1/8"
I guess I should discribe what I'm going for to see if anyone had a better idea....
I've not really felt the need to stiffen my frame as such, I've articulated up onto 2 wheels (almost flipped over too, with about 24" of open space between corners up at Moon Rocks) in my stocker and didn't feel any frame flex or anything. I've also bounced my way all over several of the trails up in my area and not had any issues save one:
My biggest concern is with armor. Both my jeeps have had rock hits on the undercarrage ranging from simple scratches in the undercoating to outright dents to the framerails and crossmember. I want to protect those framerails (and as much other stuff as possible at the same time.)
I also want something solid to attach rock sliders to, as eventually a cage will be built off of this. I'm also thinking some plating down there would be nice.
Feeling the metal of the framerail it seems as though it's layered sheetmetal in places (instead of just single thickness). It appears factory, like near the cross memeber mount and the control arm mount. The biggest issue, as I understand, is when you weld thicker material to sheetmetal, it is difficult to make a good transfer of strenght between the sheet metal and the strenghtener.
I have two thoughts/ideas about the way I want to go about it (keeping in mind that I have a very small budget):
1) weld in angle iron, such as been discussed in this thread. I had gotten ahold of some 1/4" but it turned out too short. I can't remember if I got 4 sticks or 2, and if I have 4 I could in theory splice them together. I also have some 'erector set' type angle that is about 1/8" (like 11 or 10 guage if I remember right).
2) go with a tube type stiffener and redouble this with replacing the rocker panel with square tube and perhaps run one along the drive train hump as well, so that I can bolt armor completely across and making things much stiffer in theory. To make it work, I believe I'd need to bolt through to reinforcement through the floor. I've not seen this done before, and I'm not sure where it would tie in front and rear unless it angled over to the control arm mounts (closest thing I've seen is welding runners along the top deck side to attach an internal cage to). This is pretty outside the box, perhaps, but the metal is cheap in some cases. This thought origionated from the thought I could throw an 'X' across between the rails to keep it from twisting (when I started out daydreaming), not remembering that there's a driveline and trans in the way.
I have a parts 'frame' to 'practice' on to lay out how it would tie in and see where all the main hard points are in the 'chassis' Before hauling it off I intend to chop off anything non-structural (with exception of the roof, which is gone already before I got it) and post pics with documentation of what I find.
I could just end up doing stiffener kits, but I've not been all that convinced that it will help protect from crush damage, which I'm more concerned with at this point than flex. A cage should help with the flex down the road anyway.
Thoughts?
I guess I should discribe what I'm going for to see if anyone had a better idea....
I've not really felt the need to stiffen my frame as such, I've articulated up onto 2 wheels (almost flipped over too, with about 24" of open space between corners up at Moon Rocks) in my stocker and didn't feel any frame flex or anything. I've also bounced my way all over several of the trails up in my area and not had any issues save one:
My biggest concern is with armor. Both my jeeps have had rock hits on the undercarrage ranging from simple scratches in the undercoating to outright dents to the framerails and crossmember. I want to protect those framerails (and as much other stuff as possible at the same time.)
I also want something solid to attach rock sliders to, as eventually a cage will be built off of this. I'm also thinking some plating down there would be nice.
Feeling the metal of the framerail it seems as though it's layered sheetmetal in places (instead of just single thickness). It appears factory, like near the cross memeber mount and the control arm mount. The biggest issue, as I understand, is when you weld thicker material to sheetmetal, it is difficult to make a good transfer of strenght between the sheet metal and the strenghtener.
I have two thoughts/ideas about the way I want to go about it (keeping in mind that I have a very small budget):
1) weld in angle iron, such as been discussed in this thread. I had gotten ahold of some 1/4" but it turned out too short. I can't remember if I got 4 sticks or 2, and if I have 4 I could in theory splice them together. I also have some 'erector set' type angle that is about 1/8" (like 11 or 10 guage if I remember right).
2) go with a tube type stiffener and redouble this with replacing the rocker panel with square tube and perhaps run one along the drive train hump as well, so that I can bolt armor completely across and making things much stiffer in theory. To make it work, I believe I'd need to bolt through to reinforcement through the floor. I've not seen this done before, and I'm not sure where it would tie in front and rear unless it angled over to the control arm mounts (closest thing I've seen is welding runners along the top deck side to attach an internal cage to). This is pretty outside the box, perhaps, but the metal is cheap in some cases. This thought origionated from the thought I could throw an 'X' across between the rails to keep it from twisting (when I started out daydreaming), not remembering that there's a driveline and trans in the way.
I have a parts 'frame' to 'practice' on to lay out how it would tie in and see where all the main hard points are in the 'chassis' Before hauling it off I intend to chop off anything non-structural (with exception of the roof, which is gone already before I got it) and post pics with documentation of what I find.
I could just end up doing stiffener kits, but I've not been all that convinced that it will help protect from crush damage, which I'm more concerned with at this point than flex. A cage should help with the flex down the road anyway.
Thoughts?
#25
Former Sponsor
Joined: Feb 2010
Posts: 2,021
Likes: 1
From: Hesperia
Year: 89
Model: Cherokee
Engine: 4.0
i vote buy a kit from dan at ruffstuff even though i love making my own parts, great service and parts from him.
iv heard the body will crack where ever your frame rails end, is there any ways around this? or just spend the time and plat the whole thing?
iv heard the body will crack where ever your frame rails end, is there any ways around this? or just spend the time and plat the whole thing?
#26
Member
Joined: Feb 2010
Posts: 118
Likes: 0
From: Strongsville, Ohio
Year: 1992
Model: Cherokee
Engine: 4.0 l
I got my frame stiffeners from t and t customs and there pretty nice.
Ruff stuffs look a little nicer because they have the holes to plug weld through.
Well worth my time to put them on and I am still adding and doing things every chance I get to make my jeep better.
I would not do 1/8 inch just don't think it would be worth the time.
Here is some pics of what I did.
First pic is before I put my floor back in of how I tied the frame into the tube rockers I built.
2nd pic is my skid plate
3rd pic is from under the jeep looking at the frame to rocker tie in. I also tied in the spring hanger.
4 th pic is pretty finished rocker / rock slider.
Ruff stuffs look a little nicer because they have the holes to plug weld through.
Well worth my time to put them on and I am still adding and doing things every chance I get to make my jeep better.
I would not do 1/8 inch just don't think it would be worth the time.
Here is some pics of what I did.
First pic is before I put my floor back in of how I tied the frame into the tube rockers I built.
2nd pic is my skid plate
3rd pic is from under the jeep looking at the frame to rocker tie in. I also tied in the spring hanger.
4 th pic is pretty finished rocker / rock slider.
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