| Author |
Message |
pete_79
Joined: Wed Feb 06, 2013 8:24 pm Posts: 1571
Vehicle: 91 Tin Top
|
 Posted: Thu Aug 28, 2014 1:53 pm |
|
|
Firstly; this is more of a "why is it so" question than "I'm trying to make something work" question.
Why is there no FRONT panhard relocation brackets available?
Is this because of the steering or some other safety factors? Or is it just an engineering design thing?
I've seen the rear relocation brackets (and judging by the search results that I read, you GV owners talk about them a LOT), but have never seen anything for the front.
As I've seen and heard many times; coil sprung, live axle front ends are a fine balancing act and once you mess with one part it can be very difficult to get them behaving properly again. I had a conversation with someone a while ago who put forward the idea that the front panhard angle was critical to a stable front end. As soon as you add any lift you put them out of balance, so why is there no front panhard relocation brackets to correct lift and return them back to standard angles?
|
|
|
|
 |
Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
|
 Posted: Thu Aug 28, 2014 2:01 pm |
|
|
Steering draglink angle and panhard rod angle need to be the same. Relocating the panhard rod would require the drag link to be relocated too, either by lowering the pitman arm or raising the steering arm at the axle end.
|
|
|
|
 |
pete_79
Joined: Wed Feb 06, 2013 8:24 pm Posts: 1571
Vehicle: 91 Tin Top
|
 Posted: Thu Aug 28, 2014 3:11 pm |
|
|
Thanks Steve. I figured there had to be something to it or front relocation brackets would be an off the shelf thing by now.
|
|
|
|
 |
Jezza86

Platinum Supporter
Joined: Tue Dec 06, 2011 9:30 am Posts: 2155 Location: Nhulunbuy 0880
Vehicle: 2010 jimny
|
 Posted: Thu Aug 28, 2014 9:25 pm |
|
|
Would reduce bump stear with a matiching droped pitman arm
_________________ your daily dose of questionable sanity
|
|
|
|
 |
shep
Joined: Thu Mar 29, 2007 11:30 pm Posts: 14499 Location: Here there everywhere
Vehicle: A manly awesome man jimny
|
 Posted: Thu Aug 28, 2014 9:29 pm |
|
|
I would love to be able to fit a drop pitman and panhard, would fix the only issue with my car.
Unfortuanally I haven't been able to find anything
_________________ JEEPJEEPJEEPJEEPJEEPJEEPJEEPJEEPJEEP
|
|
|
|
 |
Jezza86

Platinum Supporter
Joined: Tue Dec 06, 2011 9:30 am Posts: 2155 Location: Nhulunbuy 0880
Vehicle: 2010 jimny
|
 Posted: Fri Aug 29, 2014 6:49 am |
|
|
longer steering shaft, install steering box inverted 2" lower under the chassis, custom remount f+r panhards. i wonder how that would go.
_________________ your daily dose of questionable sanity
|
|
|
|
 |
pete_79
Joined: Wed Feb 06, 2013 8:24 pm Posts: 1571
Vehicle: 91 Tin Top
|
 Posted: Fri Aug 29, 2014 8:10 am |
|
Jezza86 wrote: longer steering shaft, install steering box inverted 2" lower under the chassis, custom remount f+r panhards. i wonder how that would go. My thoughts where more trying to keep the stock panhards, but use bolt on brackets that suit the lift you've added to bring the diffs back to centre and keep both panhards at the same angle to the diffs as they came from the factory. I guess Shep's drop pitman arms is more the solution I was thinking of if the drag link angle has to be corrected as well.
|
|
|
|
 |
Jezza86

Platinum Supporter
Joined: Tue Dec 06, 2011 9:30 am Posts: 2155 Location: Nhulunbuy 0880
Vehicle: 2010 jimny
|
 Posted: Fri Aug 29, 2014 9:02 am |
|
|
my bodylift drops the steering box 2" relative to the steering wheel and that didn't change the feel of the steering at all. that's why i was thinking in a non-bodylifted car dropping the steering box 2" might be a option rather then going to a drop arm.
i guess i am just wondering if a drop piman arm changes the feel or introduces a weakpoint in the steering is all? never driven one, wouldnt know.
bolt on brackets could, if the slipped after hitting a big bump also change the steering/ handling dramatically.
_________________ your daily dose of questionable sanity
|
|
|
|
 |
jdk81
Joined: Sat Jul 18, 2009 11:30 pm Posts: 2372 Location: Ballarat, VIC
|
 Posted: Fri Aug 29, 2014 9:23 am |
|
Jezza86 wrote: my bodylift drops the steering box 2" relative to the steering wheel and that didn't change the feel of the steering at all. that's why i was thinking in a non-bodylifted car dropping the steering box 2" might be a option rather then going to a drop arm.
i guess i am just wondering if a drop piman arm changes the feel or introduces a weakpoint in the steering is all? never driven one, wouldnt know.
bolt on brackets could, if the slipped after hitting a big bump also change the steering/ handling dramatically. A body lift extends the steering shaft, not change the geometry of the steering. been a while since had a look at jimny steering and chassis. Dropping the steering box would be a lot of work, although could maybe be done with a bolt on plate (similar to a wedge used in vit - sierra). Im pretty sure the body of the steering box would foul on the chassis, so this would require a thick plate and/or chassis to be notched. Any plate thickness further complicates the geometry. A drop pitman arm would achieve what you want easiest, but finding the correct one is the key.
|
|
|
|
 |
Jezza86

Platinum Supporter
Joined: Tue Dec 06, 2011 9:30 am Posts: 2155 Location: Nhulunbuy 0880
Vehicle: 2010 jimny
|
 Posted: Fri Aug 29, 2014 9:57 am |
|
|
i was thinking there's a precedent through body lifts that the universal joints don't foul or require a noticeable additional force to turn the wheel, leaving a second option possible.
im not saying it would be easy, or wouldnt be pointless. im comparing options to reduce the height of the pitman arm output/ draglink tip one is tones of work, the other is a bolt on drop arm. what i dont know (and dont expect) but am asking about is do drop pitman arms have any impact on handling other then reducing bump steer (when paired with panhard relocation to match)? id imagine the change in the angle from which force is applied with a drop pitman arm will affect the sector shaft life, particularly with larger wheels on high traction surfaces, with power steering, dry steering about like you should avoid.
_________________ your daily dose of questionable sanity
|
|
|
|
 |
Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
|
 Posted: Fri Aug 29, 2014 10:34 am |
|
|
Bump steer has nothing to do with the angle of the drag link or tie rod, only their relationship. A car with these two out of phase will bumpsteer regardless of whether one of these is flat. A car with both in phase won't bumpsteer even if they are both on a steep angle.
Flattening both drag link and tie rod is desirable for axle path reasons, which might effect the feel of the car, but that's not bumpsteer.
|
|
|
|
 |
Gwagensteve
Joined: Thu Feb 26, 2009 10:30 pm Posts: 13001 Location: Melbourne
|
 Posted: Fri Aug 29, 2014 10:35 am |
|
|
To add to that, the easiest way to flatten tie rod and panhard is with less lift.
|
|
|
|
 |
monley

az supporter
Joined: Wed Nov 24, 2010 7:58 am Posts: 11092 Location: Mandurah.W.A.
Vehicle: 84 LWB NT
|
 Posted: Wed Sep 03, 2014 9:10 am |
|
I think you could get away with a small relocation bracket.  Doesn't look like there run on the same angle to each other
_________________ Tell my arse, he actually gives a crap!
|
|
|
|
 |
|