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58Bonne's 1958 Bonneville

2021 September
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Power steering to manual 65 GP

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Hi Guys, I want to instal a manual steering box in my 65 GP. Was there only one type (standard 20:1 ratio is fine.) I have read that there are 2 types of steering column shaft and the box has to match the shaft. Also, if anyone knows where I can source a box from - due to my location on the other side of the world I don't want to have to provide a donor box as a changeover due to the horrendous postage involved, so a secondhander from a dismantler or someone's collection would do.

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Here is the same list of classic car dismantlers that I gave 64 kiwi boni. Contact them, I suspect they may have want you are looking for.

Here are a handful of GM dismantlers / junk yards you can reach out to that may have a used chassis. Obviously if you have access to eBay, Criaglist, or Kijiji (Canada) - they are possible sources as well. Nothing is guaranteed but they are good places to start.

Desert Valley Auto Parts        https://www.dvap.com/

Frank's Pontiac Parts  https://www.frankspontiacparts.com/

GM Sports Salvage  http://gmsports.com/pontiac

Tom's Auto Parts  https://www.tomscarparts.com/


There are two aftermarket companies in the US that make reproduction steering columns too: Ididit and Flaming River



Edited by Frosty
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Hi Frosty-thanks very much for the info. You know, I reckon I might get by with simply disconnecting the hoses, removing the pump, expelling all the fluid and hey presto, Armstrong steering.

I need to get under the thing and see if there's a ram that does all the work, or if the fluid going to the box is the main driver. Without the ram, I reckon I can disable the rest and put up with the heavy steering. I must admit here that I love all sorts of cars, but this is my first US GM experience, so I'm learning as I go.

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What exactly is the issue with your power steering..??

Both the pump and the steering box are serviceable units and can be repaired and/or rebuilt...








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Thanks Two Lane. Somewhat embarrassingly, I actually own that same shop manual and have already read those pages that you kindly posted! I'm on a road trip at the moment and was reading up on the conversion on a Mustang site-clearly Ford use a power ram to take care of the effort.

I'm gonna drain the fluid from my box and see how she goes!

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