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Has anyone successfully added rack and pinion?
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Resurrector
Posted 2015-12-21 10:32 PM (#498707)
Subject: Has anyone successfully added rack and pinion?


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After a thorough search here and on the net I've come up with no solid leads on whether any factory r+p will fit a forward look car...the big issue is travel, our cars need around 8 and 5/8" total travel, as an example the popular
"j body" (Cavalier, etc) racks don't even come close at 5 3/4" max. I experimented with a Dodge caravan rack in my '60 Plymouth but it's travel was only about 5 1/8" , it drove very nice but had too big of a turning radius and had a bit of bump steer (that was manageable). An original box is not an option!

My next pursuit will be newer trucks...having one built is out of the question - far too expensive, upwards of $2K or more. If I strike out there then may have to face using a newer steering box...anyone?
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D11
Posted 2015-12-22 3:23 AM (#498719 - in reply to #498707)
Subject: RE: Has anyone successfully added rack and pinion?


2525
Location: Montana
I have added R&P to a 61 Dodge wagon and made it work......so far. I have not gotten the car to a completed enough point for a road test but in the shop it works pretty well. I used one from a 2005 Malibu. The width is pretty darn close and they are plentiful in the junkyards. This rack however, is a manual rack (with electric assist in its OEM form) which may not work for your project. I was wanting to keep everything simple for my project so manual was perfect. You may not feel the same on yours. I did sacrifice some turning radius but it is somthing I can live with.

The pic I have attached was taken right when I first began fabricating parts and getting stuff to line up. Some small changes have been made since then.

Edited by D11 2015-12-22 3:38 AM




(R&P2.jpg)



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Attachments R&P2.jpg (181KB - 132 downloads)
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grunau
Posted 2015-12-22 7:49 AM (#498725 - in reply to #498719)
Subject: Re: Has anyone successfully added rack and pinion?


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Hi
I'm just curious as to the reasoning behind this modification ...
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wizard
Posted 2015-12-22 8:40 AM (#498728 - in reply to #498725)
Subject: Re: Has anyone successfully added rack and pinion?



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grunau - 2015-12-22 1:49 PM

Hi
I'm just curious as to the reasoning behind this modification ...


I second that
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D11
Posted 2015-12-22 2:50 PM (#498771 - in reply to #498728)
Subject: Re: Has anyone successfully added rack and pinion?


2525
Location: Montana
I cannot speak for Ressurector, but in my case I did not have room to use stock steering gear with the engine I'm putting in the car. Everything was in the way so I had to get creative and this alternative worked.
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mstrug
Posted 2015-12-22 2:58 PM (#498772 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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Less revolutions from stop to stop. More firm, precise steering feel. Try this;

http://www.speedwaymotors.com/PWR-RACK-PINION-T-BIRD-82up,239824.ht...

Chrome Manual:

http://www.speedwaymotors.com/Chrome-Mustang-II-Manual-Rack-and-Pin...

FAQ:

http://www.flamingriver.com/index.php/service/tips/rack-and-pinion-...


More info?

http://www.killbillet.com/showthread.php?34889-Junk-Yard-Rack-amp-P...



Edited by mstrug 2015-12-22 3:12 PM
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wizard
Posted 2015-12-22 3:21 PM (#498774 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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As the active driver I am, I never yet felt the need for changing the constant control and I'm very sure that if someone needs improvement, then there's several rebuilder that can fix a firmer feel.

Space, that's another issue totally - the need for modifying and hot rodding the FL cars might create needs for changing concept.
When the concept is changed, the spirit of an FL car simply fade away and dies - even if it handles better

The rack n' pinion above could have bump steer issues though?!

Edited by wizard 2015-12-22 3:23 PM
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D11
Posted 2015-12-22 3:33 PM (#498777 - in reply to #498774)
Subject: Re: Has anyone successfully added rack and pinion?


2525
Location: Montana
Wizard, I fully expected to be met with the disapproval of modifying a FL car from its stock form. I understand you being a purist and wanting things to stay as they were when the car rolled off the line. However, if I had not ended up with this car as a project it would be a washing machine or worse.....a Prius and that's the furthest thing from a FL car.

As far as bump steer, sure there is a possibility of it. It's my first shot at retrofitting a R&P setup. We will drive it and if it's unbearable or unsafe we will modify until it is acceptable. The beauty of modified stuff, it doesn't have to stay stock. :-)
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1960fury
Posted 2015-12-22 3:48 PM (#498779 - in reply to #498774)
Subject: Re: Has anyone successfully added rack and pinion?



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wizard - 2015-12-22 3:21 PM

As the active driver I am, I never yet felt the need for changing the constant control and I'm very sure that if someone needs improvement, then there's several rebuilder that can fix a firmer feel.

Space, that's another issue totally - the need for modifying and hot rodding the FL cars might create needs for changing concept.
When the concept is changed, the spirit of an FL car simply fade away and dies - even if it handles better

The rack n' pinion above could have bump steer issues though?!


i second that a million times
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BigBlockMopar
Posted 2015-12-22 4:53 PM (#498788 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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You would need shorter steering arms to compensate for the lack of travel in the modern r&p's.
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ttotired
Posted 2015-12-22 6:08 PM (#498798 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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If you wanted to go to r+p steering, wouldnt it be easier to convert the entire front end to a mustangII setup so you also loose the torsion bars?

I know this will bring howls, but for hot rodding, those darn things are in the way

Not sure what was in here, but I thought it was a mustangII, as its got air bags

Interestingly though, it does look quite stock under the bonnet





(blue low1.jpg)



(blue low3.jpg)



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Attachments blue low3.jpg (169KB - 147 downloads)
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Resurrector
Posted 2015-12-22 9:20 PM (#498814 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?


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D11, thanks for posting, it looks good. Can you tell me how much the travel is on that rack? I would consider going to manual steering as my car now has a light slant six instead of the mammoth stock big block, I can sure relate to you wanting to keep it simple! What engine are you using?

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D11
Posted 2015-12-22 10:33 PM (#498817 - in reply to #498814)
Subject: Re: Has anyone successfully added rack and pinion?


2525
Location: Montana
I would be happy to get you some measurements on rack travel tomorrow when I am at the shop. The engine I put in is a straight six as well but instead of 225 CID it's 5.9 Liters. Even with the weight of the engine, the manual rack turns the wheels much easier than I had expected.

Edited by D11 2015-12-23 12:28 AM
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wizard
Posted 2015-12-23 2:24 AM (#498827 - in reply to #498777)
Subject: Re: Has anyone successfully added rack and pinion?



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D11 - 2015-12-22 9:33 PM

Wizard, I fully expected to be met with the disapproval of modifying a FL car from its stock form. I understand you being a purist and wanting things to stay as they were when the car rolled off the line. :-)


Objection Lets not offend the purists by counting me in to their close circles! If you have followed my threads, then you know that I'm constantly adding options that never was on the car when it left the factory and that I'm constantely reset and improve the car.

The difference is that I'm trying to keep it period correct as much as possible.

Even our dear Neil (RIP) was never a purist even if many thought so. Neil cared a lot for oem appearances, but at the same time he improved his car all the time.

What I underline is that the FL-cars, especially the last generation, was totally outstanding in handling and roadability in comparison with the competition. In fact so good that the cars still handles good after +55 years "as is" and could be improved to be exceptionally on the road with some small changes.

I do understand that some guys wants to make changes and that choice of components may force on changes. What I want to convey is that sometimes it's a long expencive road just to find out that it was better from the start.

Edited by wizard 2015-12-23 2:25 AM
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Resurrector
Posted 2015-12-23 9:25 AM (#498846 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?


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Thanks D11! Holy, Are you running a 5.9 Cummins?!
Wizard, I totally get what you're saying. There has been times I've gone too far with mods, and ended up selling the car because it lost its original appeal that drew me to it in the first place. In my case, I felt I was between a rock and a hard place with the original box, I had 2 of them and both were deemed unrebuildable by a specialized shop. It was just the excuse my creative streak needed, which rules me
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D11
Posted 2015-12-23 11:17 AM (#498850 - in reply to #498846)
Subject: Re: Has anyone successfully added rack and pinion?


2525
Location: Montana
You are correct. I put a 5.9 Cummins from a 96 Dodge 2500 pickup in my wagon and backed it with a 5 spd OD transmission . It has evolved into quite the project but I am getting close to done with it. There isn't much room for anything else under the hood after you set it in.



(img20151223_091748.jpg)



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57chizler
Posted 2015-12-23 1:19 PM (#498864 - in reply to #498707)
Subject: RE: Has anyone successfully added rack and pinion?



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I'm a fan of rear-mounted racks, front-mounted racks are often easier to mount because of limited room at the rear.

I've used the Cavalier racks on a couple of non-Mopar swaps, the limited travel can be overcome by shortening the steering arms. On the last one I did ('50 Olds) the difference in travel was minimal so I left the arms alone.



(Looking up.jpg)



(Rear View.jpg)



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D11
Posted 2015-12-23 2:54 PM (#498870 - in reply to #498864)
Subject: RE: Has anyone successfully added rack and pinion?


2525
Location: Montana
Resurrector,

I just measured up the Malibu rack that I used and the travel on it is about the same as the others you have mentioned. I have about 5.125 inches of rack travel. Not quite the 8 or so you were looking for. You mentioned looking at a newer style pickup rack in a previous post. I had looked at a pickups/SUV in the junkyard when I was seaching for a rack to use. The problem that I had with them is most are too wide to use or they are a front steer set up. Hence the reason I went the direction I did.
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Resurrector
Posted 2015-12-23 9:06 PM (#498895 - in reply to #498870)
Subject: Re: Has anyone successfully added rack and pinion?


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D11, WOW...that wagons gonna haul! Well done. And I see the engine and compartment hasn't been painted all pretty, that's how I roll too - I could give a darn what it looks like under the hood as long as it's reliable - seems a rare attitude in his hobby.
Thanks for measuring for me, and the advice, that helps. your car should drive much like mine did, but really it's manageable, depending on where you drive. I'm just picky about that, my car sees a lot of small parking lots. One thing I found with rack and pinion, I test drove it with old grip bias tires on the front, on the highway...still drove wonderfully with no wandering! Try that with an original steering box.
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Resurrector
Posted 2015-12-23 9:12 PM (#498896 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?


100010010025
57chizler, that's informative, my question is, how the heck do you shorten the steering arms?? Seems impossible when looking at the original cast ones?
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57chizler
Posted 2016-01-05 3:47 PM (#500074 - in reply to #498896)
Subject: Re: Has anyone successfully added rack and pinion?



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Took me a while to find the pics of steering arms I shortened for a Studebaker with the Cavalier rack. I know lots of folks shun welding on any suspension/steering part but it's all about doing it correctly.



(Strng arms.jpg)



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ttotired
Posted 2016-01-05 5:40 PM (#500080 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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Welding them is illegal here, no automotive engineer will pass it for "on highway" use

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Resurrector
Posted 2016-01-05 10:02 PM (#500128 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?


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Well, I threw in the towel on this one, went with a stock manual box. I just don't have the patience and time to reinvent the wheel, it was still fairly tight so problem solved. I adapted an 80's fifth avenue column and it fit like a glove.
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60 dart
Posted 2016-01-05 11:58 PM (#500131 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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manual works real good unless settin still on radials with low air . after a few ft. in forward you can even go one handed . reverse is fairly easy
from the get go -------------------------------------------------later
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mikes2nd
Posted 2016-01-06 12:09 AM (#500134 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?


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Wise choice kemosabee

I have a Z06 steering rack in my 70 Goat though





(WP_001098.jpg)



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1960fury
Posted 2016-01-06 7:44 AM (#500146 - in reply to #500080)
Subject: Re: Has anyone successfully added rack and pinion?



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ttotired - 2016-01-05 5:40 PM

Welding them is illegal here, no automotive engineer will pass it for "on highway" use



same in germany.
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wizard
Posted 2016-01-06 8:46 AM (#500151 - in reply to #498707)
Subject: Re: Has anyone successfully added rack and pinion?



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As I was thaught, welding and heating front suspension parts are absolutely not allowed. A bent part is to be considered junk and thrown in the appropriate bin

As discussed in another thread; it's fine to risk your own life, but not the life of other people...........
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Powerflite
Posted 2016-01-06 9:16 PM (#500246 - in reply to #500151)
Subject: Re: Has anyone successfully added rack and pinion?



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I have also welded a pitman arm for a '56 Chevy suburban 4x4 conversion. I mounted a 4x4 power steering box to the outside frame and mounted my custom pitman arm to connect to the original setup. Worked REALLY well. It was really odd to be sitting in a big '56 Suburban with effortless steering using the original wheel and column. However, after 5 years of driving with big tires on rough terrain, the frame cracked because it wasn't designed to take the force from the box. I had to repair & reinforce it. That was a little dangerous, but the welded pitman arm wasn't an issue at all.
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57chizler
Posted 2016-01-07 2:48 PM (#500309 - in reply to #500151)
Subject: Re: Has anyone successfully added rack and pinion?



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Borgeson is currently marketing a replacement Mopar power steering box that is made by welding a mounting pad on a non-Mopar box.
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