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Hydroboost conversion on a 1993 Ford F250 N/A 7.3L IDI.
1) Collect parts
You will need one hydroboost brake booster
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Two power steering lines. From the pump to the brake booster.
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From the booster to the steering box.
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And one powersteering pump reservoir. This part is absolutely needed. It has two low pressure return ports. If you try to “T” the two return lines together, it will cause the brakes to drag after being applied. An unrestricted return line is absolutely critical to prevent this. (This image is in comparison to a ford ranger pump, the return on those pumps is different.)
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2) Installation- disassembly.
Unbolt master cylinder from the vacuum booster. 2 nuts.
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Remove vacuum hose and block it off. 1 clamp.
Remove clip retaining booster push rod to the brake pedal. 1 clip
Unbolt the booster from the fire wall and remove it. 4 nuts threaded on to studs on the booster.
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Remove high pressure line from the power steering pump and from the steering box. It will drip some fluid.
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Remove the fitting from the power steering pump. It takes a 15/16 socket. I will pop out. Make sure to catch it or these parts may come out with it. They are shown in order and position incase they do pop out, you can put them right back in.
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Remove the power steering pump reservoir. With the fitting removed it pulls right off. Be aware that the reservoir still has fluid in it and will make a bit of a mess when you pull it off. My engine bay was already covered in grime so I just put a pan beneath where I was working and pulled it off. Disconnect the steering box return line. It was easier for me to do it in this order because of access.
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