Thunderbird/Cougar Steering Shaft Mod - TCCoA Forums

 
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post #1 of 26 (permalink) Old 06-30-2012, 08:21 AM Thread Starter
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Thunderbird/Cougar Steering Shaft Mod

Have you been wanting to add a set of Headers to your Thunderbird or Cougar?

Sure..Alot of us have..

The problem we run into is the stock steering shaft won't clear a set of nice Headers..


I'm going to show you all the parts you need..

So that you can Modify your Steering Shaft assembly to clear those Aftermarket Headers you've been wanting to install..





You can see the subtle differences between the years..




If you keep the stock Steering Shaft (Lower Shaft) installed you may or may not be able to clear your Aftermarket Headers..


I've created a Diagram with Part Numbers..So you know what goes where..



I'm going to outline a Parts List..

We'll start at the Steering Column U-Joint, and end with the replacement of the stock Steering Column (Rag Joint)..



Flaming River Parts List

Steering Column U-Joint: FR1716DD
Center U-Joint: FR1716DD
3/4" Shaft Material: FR1850
Support Bearing: FR1810
Bottom U-Joint: FR1715DD

The Bottom U-Joint (FR1715DD) replaces the factory Steering Column (Rag Joint)..


All-Star Performance

Firewall Support Bearing:ALL52130


I recommend using the Red Loctite for assembling your parts!



Here are the dimensions for the following parts:

FR1716DD-3/4" ID x 3/4" ID
FR1850-18" Long x 3/4" OD
FR1810-3/4" ID
FR1715DD-3/4" ID x 36 Spline

ALL52130-3/4" ID



This should make things easier for all of us!


Here's 392Bird's page on how to do it http://members.tccoa.com/392bird/birdworka1.htm


Rayo..

.
.
1991 Ford Thunderbird Sport

"If you don't know where you're going..Any road will take you there."George Harrison

Last edited by XR7-4.6; 06-30-2012 at 10:10 PM. Reason: added link
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post #2 of 26 (permalink) Old 06-30-2012, 07:28 PM
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Thanks for posting. I may have to do this one day.

1995 SC------------------1994 SC----------------1993 LX
Black----------------------Red----------------------Grey
3.8-------------------------3.8w/bent rod---------5.0
4R70W--------------------M5R2--------------------AOD
2.4 AR in works---------2.0 Auto Rotor---------N/A
24psi----------------------15+----------------------none yet
450RWHP----------------300RWHP est.---------who knows/who cares
10.740@127------------13.842@103.08-------16.1@
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post #3 of 26 (permalink) Old 06-30-2012, 07:46 PM Thread Starter
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Np...

I wanted to put all the information for this Mod in one place..

Rayo..

.
.
1991 Ford Thunderbird Sport

"If you don't know where you're going..Any road will take you there."George Harrison

Last edited by Trunk Monkey; 03-19-2013 at 10:25 AM. Reason: Condense reply
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post #4 of 26 (permalink) Old 09-10-2012, 12:39 AM
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So the "aftermarket" headers.... shorty, mid length, long tubes??? And from a 99-04 2v mustang?
just curious

1997 Thunderbird LX
2003 Mach 1
2002 Escape
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post #5 of 26 (permalink) Old 01-23-2013, 09:15 AM
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curious as well. Just what aftermarket headers does this allow? 2v mustang (99+) headers are cheap....(AM has some pacesetters for 250$...)
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post #6 of 26 (permalink) Old 01-23-2013, 01:21 PM Thread Starter
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The Steering Shaft Mod has been done predominantly on 5.0L/5.8L pushrod MN12s..

I don't know of anyone that has done the Steering Shaft Mod on a 4.6L MN12??..

Maybe someone that has done the Steering Shaft Mod on a 4.6L MN12 will speak up??

One of the problems a 4.6L MN12 owner could face is the fact that the 4.6L Engine is wider than the 5.0L/5.8L..

Which might cause an issue trying to do the Steering Shaft Mod..Considering the lack of space compared to its pushrod counterpart..

You could always become a pioneer, and just try it!..You know..Buy the Steering Shaft Mod Parts & a set of cheap Longtubes..




Rayo..

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.
1991 Ford Thunderbird Sport

"If you don't know where you're going..Any road will take you there."George Harrison
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post #7 of 26 (permalink) Old 01-23-2013, 01:48 PM
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Mark VIII guys do it all the time. A lot of them swap in Cobra Manifolds and do the steering shaft mod to fit them.

-Matt
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post #8 of 26 (permalink) Old 01-23-2013, 04:33 PM
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1 thing to note, the firewall support is not needed to make it work.
Its just extra support.
I tried to run one, but I could not get it to work right, so I said screw it.
If you want to run one, by all means, go ahead. I'm just stating what worked for me.

Nick......................I'm back!!!
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rest in peace JL
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post #9 of 26 (permalink) Old 01-23-2013, 04:50 PM
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Also, if you wanted to, you can make a steel plate to cover the hole and hold the support bearing on the firewall and omit the frame rail support bearing too.

-Matt
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post #10 of 26 (permalink) Old 01-23-2013, 09:41 PM Thread Starter
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Quote:
Originally Posted by XR7-4.6 View Post
Mark VIII guys do it all the time. A lot of them swap in Cobra Manifolds and do the steering shaft mod to fit them.
That's a slightly different Steering Mod IIRC..Basically upgrading the stock rag joint to the flaming river piece to allow header clearance..

I think you're referring to this Mark VIII Steering Mod...or this [DLF] Flaming River Rag Joint Swap

Did you take any pics of that Mark VIII you ransacked to get your Marauder Engine out of?...

I seem to remember you mentioning something about that car having some sort of steering mods..

Anyone else thats done the Steering Shaft Mod listed here on a 4.6L..Please post some pics..




Rayo..

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1991 Ford Thunderbird Sport

"If you don't know where you're going..Any road will take you there."George Harrison
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post #11 of 26 (permalink) Old 01-23-2013, 10:42 PM
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There's more than one way to skin a cat. The "standard" mod for them is extending the splined end straight out and moving the pivot towards the shock tower. Essentially the same routing as a Fox/SN95 shaft but without the necessity of a firewall support bearing. That's not the only way to do it though. The Mark VIII I got my Mach motor out of had the 392bird style steering shaft mod with the stock (but very deformed) firewall boot to keep the seal.

tbirdtess set his up by using a sheet metal plate over the firewall hole and adding a support bearing(ala SN95 Mustang). I believe he even used OEM U joints and shaft pieces. I'll probably do something similar.

-Matt
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post #12 of 26 (permalink) Old 01-24-2013, 08:39 AM
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I now have just a small hole for the steering shaft to fit through.



Ahh, this is back when I first installed it, using foxbody mustang manifolds.


Nick......................I'm back!!!
May you fly low and fast
rest in peace JL

Last edited by _95badbird; 01-24-2013 at 08:51 AM.
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post #13 of 26 (permalink) Old 03-18-2013, 03:37 PM
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I highly doubt this mod would clear 4.6 Longtube headers in an mn12 engine bay. The spot available for the support bearing is right where the #5 and #6 primary tubes go.

This is likely more feasible for pushrod 5.0 engines. I'd love for someone to actually turn wrenches and do this with 4.6 Longtube headers. Until then, this "article" is kinda lame considering it is not specific as to which engine configuration this applies to and has not been done by the OP. Will I be able to add a set of 1-7/8 headers with this steering shaft mod?? According to this article, I should be able to.........
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post #14 of 26 (permalink) Old 03-18-2013, 03:49 PM
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If you lose the eyelet bearing mounted to the frame rail and make a shaft-boot delete plate with a support bearing mounted higher up(towards the booster) the shaft will come out almost exactly where the Mustang steering shaft goes in relation to everything.

-Matt
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post #15 of 26 (permalink) Old 03-18-2013, 04:13 PM
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Quote:
Originally Posted by XR7-4.6 View Post
If you lose the eyelet bearing mounted to the frame rail and make a shaft-boot delete plate with a support bearing mounted higher up(towards the booster) the shaft will come out almost exactly where the Mustang steering shaft goes in relation to everything.
prove it
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post #16 of 26 (permalink) Old 03-18-2013, 04:22 PM
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Only one I can think of who did it that way is tbirdtess. His is routed the same way it is on Mustangs



And don't forget, many 4.6 Mustang Longtubes have the steering shaft run between the primaries, rather than have all the primaries bundled out of the way

-Matt
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post #17 of 26 (permalink) Old 03-18-2013, 05:58 PM
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still waiting.......

I don't see any pictures of MN12s with 4.6 longtube mustang headers using the steering mod......
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post #18 of 26 (permalink) Old 03-19-2013, 09:01 AM
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Quote:
Originally Posted by Rayo View Post
The Steering Shaft Mod has been done predominantly on 5.0L/5.8L pushrod MN12s..

I don't know of anyone that has done the Steering Shaft Mod on a 4.6L MN12??..

Maybe someone that has done the Steering Shaft Mod on a 4.6L MN12 will speak up??

One of the problems a 4.6L MN12 owner could face is the fact that the 4.6L Engine is wider than the 5.0L/5.8L..

Which might cause an issue trying to do the Steering Shaft Mod..Considering the lack of space compared to its pushrod counterpart..

You could always become a pioneer, and just try it!..You know..Buy the Steering Shaft Mod Parts & a set of cheap Longtubes..




Rayo..
Quote:
Originally Posted by guitar maestro View Post
I highly doubt this mod would clear 4.6 Longtube headers in an mn12 engine bay. The spot available for the support bearing is right where the #5 and #6 primary tubes go.

This is likely more feasible for pushrod 5.0 engines. I'd love for someone to actually turn wrenches and do this with 4.6 Longtube headers. Until then, this "article" is kinda lame considering it is not specific as to which engine configuration this applies to and has not been done by the OP. Will I be able to add a set of 1-7/8 headers with this steering shaft mod?? According to this article, I should be able to.........
yeeeeeeep.

yall pretty much said the same thing.

Nick......................I'm back!!!
May you fly low and fast
rest in peace JL
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post #19 of 26 (permalink) Old 03-19-2013, 09:20 AM
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Do you think this will work for us SC guys and using the mustang 3.8 headers?

I can explain it to you, but I can't understand it for you

Tim

1994 Cougar 3.8L Supercharged
1990 Tbird Supercoupe
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post #20 of 26 (permalink) Old 03-19-2013, 10:41 PM
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Quote:
Originally Posted by _95badbird View Post
yeeeeeeep.

yall pretty much said the same thing.
kinda sorta. His comments are pure speculation as he doesn't have a 4.6 to look at, let alone tinker with, where as my doubt comes from actual experience fitting in 4.6 longtubes.
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post #21 of 26 (permalink) Old 03-19-2013, 11:08 PM
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ohh this is great, just added on to my to do list!
good post... -Paul
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post #22 of 26 (permalink) Old 03-20-2013, 11:20 AM
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^ gathering that you did not read the posts about this not helping 4.6 owners...
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post #23 of 26 (permalink) Old 06-20-2013, 02:08 AM
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So, just out of curiosity, which model/year mustang can I pull this part from?

'91 Sport 5.0 HO - AOD - JBL Premium Sound w/ Kenwood eXcelon deck - Black Leather LX interior w/ Lux Light
- 17" Sport Edition Wheels wrapped in Michelin 225/50's - Custom Flowmaster exhaust - GT40 heads - Electric Fan - '92 Sport Bumper

Planned Mod's
-Cobra intake (upper/lower) / SC MAF/30#inj / Dual Exhaust/headers
-'99 CV/PI 4" Aluminum DS / MK8 Disc Rear/HS/LCA/11.5" Front Disc
-M5R2 5-Speed / 3.27 LS Diff / SC F/R seats
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post #24 of 26 (permalink) Old 06-20-2013, 02:57 AM
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None. It's a flaming river part.

-Matt
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post #25 of 26 (permalink) Old 04-16-2016, 01:18 PM
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Quote:
Originally Posted by XR7-4.6 View Post
None. It's a flaming river part.
/\
NOT

Hello all. My mod was for a 5.8 using all Thunderbird parts!



tbirdtess

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post #26 of 26 (permalink) Old 04-16-2016, 09:10 PM
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Quote:
Originally Posted by tbirdtess View Post
/\
NOT

Hello all. My mod was for a 5.8 using all Thunderbird parts!
[IMG]http://i180.photobucket.com/albums/x88/tbirdtess/HPIM0371.jpg[/IMG


tbirdtess
I knew that's what you were using, I was responding in that post that the original write up used a flaming river part, not a stock mustang one. I actually plan on copying your setup

-Matt
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