Need new steering rack

Looks like the bolt is a US size 7/16" twelve point head. You will need a professional quality socket like Snap-On, MAC, MATCO or Proto. Other sockets may fit too loosely and round off the corners.

The reason I say US size is that it has a star pattern on the head to indicate a high strength bolt. Metric bolts are usually marked with a xx.xx number to indicate bolt strength.

See http://www.boltdepot.com/fastener-information/Materials-and-Grades/Bolt-Grade-Chart.aspx for more information on bolt head markings, or http://www.google.com/search?q=bolt+head+markings&hl=en&rls=com.microsoft:en-us&start=0&sa=N if you have nothing to do with your morning but get educated.

tried all mac U.S. sockets. doesnt fit. do auto part stores sell that whole little thing?

i dont have any 12pt head.
 
For some reason it looks to me like the brass fittings are leaking. what should i have done before i put them into the new rack?

also the one hydralic brass fitting line is like resting on the inner tie rod boot.
 
Each hose uses an O ring on each end to seal them. The hoses will swivel when they are installed and tightened into place. That is why there are O rings on the fittings. The O ring is the part that actually makes the pressure seal. If you slide the nut all the way back as far as it will go, you will see the O ring and the groove cut into the center section of the fitting.
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Sometimes you will get some white teflon rings with the pump or rack. The rings go on the threaded part of the fitting to reduce or prevent small leaks. They are not meant to seal the pressure part of the line or substitute for the rubber O ring. Heat the white teflon seals in hot water and they will be eaiser to install. You can install the fittings without them and not have any leaks if the O rings seal good.
 

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