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Extreme Veteran
Posts: 390
Location: Brisbane | I was wondering if there was a difference between a 1957 desoto power steering box and a 1957 plymouth power steering box. The aluminium coaxial one. Are they the same length etc. Also did 1957 plymouth use a Vickers style pump or were they only eaton and thompson. Thanks |
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Expert
Posts: 1906
Location: Ontario, Canada | The gears are the same. Just need to change the steering arm at the bottom.
Greg |
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Extreme Veteran
Posts: 390
Location: Brisbane | Thanks. You mean the pitman arm needs changing? Whats the difference? |
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Expert 5K+
Posts: 5006
| My 57 Chrysler with power steering used the Thompson pump.
I'm putting it in my dodge... Hmm never thought about the Pittman arm. Guess i better check. |
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Expert
Posts: 1906
Location: Ontario, Canada | coupeman - 2018-08-18 8:03 AM
Thanks. You mean the pitman arm needs changing? Whats the difference?
Yes. Geometry? I don't remember but it is different! They are splined the same though.
Greg |
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Expert
Posts: 3768
Location: NorCal | On the page below 19-27-2 is the Pitman arm.
(Pitman.jpg)
Attachments ---------------- Pitman.jpg (153KB - 213 downloads)
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Expert 5K+
Posts: 9604
Location: So. Cal | I wonder what the difference is between Type 1 and Type 2. Do they interchange? It seems like they should. |
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Extreme Veteran
Posts: 390
Location: Brisbane | Thanks for all the info guys. I wonder if a manual pitman arm will work on a power steering box as i have one |
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Elite Veteran
Posts: 915
Location: Pau, S-W France | coupeman - 2018-08-18 2:03 PM
Thanks. You mean the pitman arm needs changing? Whats the difference?
The pitman arm is longer on DeSoto, Chrysler and Imperial. I remember i bought one, wrong ...
Maybe type 2 is for Coaxial pw. steering and type 1 for Constant Control (which has been installed on late 57, according to FSM)
Edited by Phil_the_frenchie 2018-08-19 12:11 PM
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Expert 5K+
Posts: 5006
| power steering and manual steering used the same pittman arm??? wow.
now I just have to get it off... |
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Elite Veteran
Posts: 915
Location: Pau, S-W France | 2 pics of the '57 canadian parts manual (no Constant Control steering in it). No info about the "up to" lockwasher
Seems the US parts manaul list only pw steering pitman arm, i don't see the ... 005 and ...983 !
Edited by Phil_the_frenchie 2018-08-19 12:24 PM
(IMG_20180819_181749.jpg)
(IMG_20180819_181809.jpg)
Attachments ---------------- IMG_20180819_181749.jpg (165KB - 201 downloads) IMG_20180819_181809.jpg (196KB - 198 downloads)
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Expert 5K+
Posts: 5006
| they are different manual vs power steering uhg...
Edited by mikes2nd 2018-08-19 6:27 PM
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Elite Veteran
Posts: 915
Location: Pau, S-W France | In the 55-58 parts manual there are two sections, one for standard (manual) steering and one for power.
The canadian manual has less numbers because it's a '57 only.
At last there are 8 different pitman arms for 57-58 cars .............
Edited by Phil_the_frenchie 2018-08-20 3:16 AM
(pitman-arm.jpg)
(pitman-arm3.jpg)
(pitman-arm2.jpg)
Attachments ---------------- pitman-arm.jpg (171KB - 222 downloads) pitman-arm3.jpg (181KB - 209 downloads) pitman-arm2.jpg (27KB - 212 downloads)
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Elite Veteran
Posts: 1102
Location: Hayward, Calif | Check the length of the pitman arm to the length of the idler arm. They should be the same length. If not wheels won't be parallel when turning. Jerry |
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Extreme Veteran
Posts: 390
Location: Brisbane | Great information. Thanks everyone! |
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