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pitman arm hitting
https://auszookers.com/forum/viewtopic.php?f=5&t=32992		 Page 1 of 1
Author:  jonfromhamilton [ Tue May 29, 2012 8:34 pm ]
Post subject:  pitman arm hitting
I moved my front axle in the Sierra forward 30mm by redrilling the ubolt plate and spring perches.

now the pitman arm/tie rod end is impacting on the drag link.

my question is.. if i unbolt the tierod end from underneath the pitman arm and rebolt it on top of the pitman arm which would raise the tie rod about 1.5 - 2 inches.
would this improve the impacting situation when I hit bumps ?

-Jon
Author:  Fatzook [ Tue May 29, 2012 8:36 pm ]
Post subject:  Re: pitman arm hitting
You can't. The hole in the pitman arm is tappered to suit the tappered shank of the TRE.

Move your diff back, or steering box forward.
Author:  SierraDan [ Tue May 29, 2012 8:38 pm ]
Post subject:  Re: pitman arm hitting
Bumpstop spacers.
Author:  jonfromhamilton [ Tue May 29, 2012 8:39 pm ]
Post subject:  Re: pitman arm hitting
I don't like those answers so I am going to put my hands over my ears and go "LALALALALALALALALLA not listening!"

re-drill tapered hole perhaps :|
Author:  jonfromhamilton [ Tue May 29, 2012 8:40 pm ]
Post subject:  Re: pitman arm hitting
what about get a new flat pittman arm so at least it is raised 20mm or so
Author:  Fatzook [ Tue May 29, 2012 8:41 pm ]
Post subject:  Re: pitman arm hitting
jonfromhamilton wrote:
I don't like those answers so I am going to put my hands over my ears and go "LALALALALALALALALLA not listening!"

re-drill tapered hole perhaps :|



It will be too deep of a taper if you re-drill from the other side. TRE will flog about in the hole.
Author:  Fatzook [ Tue May 29, 2012 8:42 pm ]
Post subject:  Re: pitman arm hitting
jonfromhamilton wrote:
what about get a new flat pittman arm so at least it is raised 20mm or so



That will cost you a bit, won't be legal ( not that anyone would notice) , but more importantly, lifting the drag link up at the pitman arm end will increase bump steer.
Author:  jonfromhamilton [ Tue May 29, 2012 8:42 pm ]
Post subject:  Re: pitman arm hitting
I don't like the tone of your answer Fatzook but I do like (out of context) the term "flog about in the hole"
Author:  Fatzook [ Tue May 29, 2012 8:44 pm ]
Post subject:  Re: pitman arm hitting
jonfromhamilton wrote:
I don't like the tone of your answer Fatzook but I do like (out of context) the term "flog about in the hole"



No way!

Tight hole is the best 8)
Author:  jonfromhamilton [ Tue May 29, 2012 8:45 pm ]
Post subject:  Re: pitman arm hitting
re-drill
Author:  Gwagensteve [ Tue May 29, 2012 8:45 pm ]
Post subject:  Re: pitman arm hitting
There's no flatter pitman arms that I'm aware of that bolt to a Sierra steering box. Vitara boxes have a very flat pitman arm, but it's not a solution for you before Saturday. :D . Bumpstop spacing is in your near future.

Steve.
Author:  jonfromhamilton [ Tue May 29, 2012 8:48 pm ]
Post subject:  Re: pitman arm hitting
Thanks OB1

There will be grinding and banging in Toolangi come Saturday, and it will be the call of the mighty Sierra.
Author:  jono165 [ Tue May 29, 2012 9:11 pm ]
Post subject:  Re: pitman arm hitting
Time for power steering then Armsup

I have the BenT kit with vitara power steer and it mounts the PS box approx 20mm further forward to help with rub/redrilled perches.
Author:  drovin [ Tue May 29, 2012 9:24 pm ]
Post subject:  Re: pitman arm hitting
or you could fit a pitman arm out of a jimny, about 7mm shorter than sierra.
Author:  Matthew [ Tue May 29, 2012 10:34 pm ]
Post subject:  Re: pitman arm hitting
Jon, you are going to have to space it 50mm, steering is going to be a nightmare on loose rough tracks if you don't.

Only problem with this is that you currently only have ~50mm bump clearance.
Author:  Fatzook [ Wed May 30, 2012 1:32 pm ]
Post subject:  Re: pitman arm hitting
drovin wrote:
or you could fit a pitman arm out of a jimny, about 7mm shorter than sierra.



Interesting.

So how do you get around the Jimny pitman arm having a different tapered spline to the sierra box?
Author:  mrw82 [ Wed May 30, 2012 3:19 pm ]
Post subject:  Re: pitman arm hitting
Fit the whole jimny box
Author:  christover1 [ Wed May 30, 2012 6:07 pm ]
Post subject:  Re: pitman arm hitting
22mm is the magic number, to avoid these issues.

Too late now,

but gives you an excuse to look at power steer options :)
Author:  Gwagensteve [ Wed May 30, 2012 6:19 pm ]
Post subject:  Re: pitman arm hitting
christover1 wrote:
22mm is the magic number, to avoid these issues


Could this be more cryptic? I assume you mean 22mm of axle relocation, but you could as easily mean 22mm of bumpstop spacing.

In any case, Jon is running new 33's so needs all the help he can get to clear the firewall, and will likely need bumpstop spacing to keep the tyres out of the inner guards, so with bumpstop spacing he avoids steering issues and gains clearance.

22mm of axle relocation may well allow stock bumpstops and no steering contact, but piggles ran 30mm relocation, 50mm bumsptop spacing and I had no steering contact even with a sleeve on the drag link.

Steve.
Author:  jonfromhamilton [ Wed May 30, 2012 8:22 pm ]
Post subject:  Re: pitman arm hitting
I have just drawn up the plans for the bump stop spacing, 25mm block at the front to bring it to 18mm of "daylight" as Steve puts it.
and 30mm block at the back (which has to be welded on) to leave 20mm of daylight.

The firewall is fine atm but I do have a power steering set up on it's way next week thanks to pay-day today.
But as far as what parts of the BenT kit I will need... that's another story.

-Jon
Author:  Fatzook [ Wed May 30, 2012 8:27 pm ]
Post subject:  Re: pitman arm hitting
mrw82 wrote:
Fit the whole jimny box



Drovin mentioned only the fitting of the pitman arm. Just curious how this is to be done.
Author:  jono165 [ Wed May 30, 2012 8:36 pm ]
Post subject:  Re: pitman arm hitting
jonfromhamilton wrote:
The firewall is fine atm but I do have a power steering set up on it's way next week thanks to pay-day today.
But as far as what parts of the BenT kit I will need... that's another story.


BenT kit is pretty straight forward you will need the whole kit, as its really just a bracket for the pump, spacer for the rad and a wedge for the PS box (exxy bit). If you need a hand let me know I can send pics of line routing etc.
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