This is an aftermarket steering wheel hub boss adaptor kit + quick release kit combo for:

93-11 Nissan Altima

This hub boss kit is made of high quality light weight aluminum with rubber, and it is 67.6 mm/2.66 in tall with approximate 3.5" diameter. This hub boss kit comes with 6 holes pattern that is compatible with most aftermarket racing steering wheels (such as Momo, Nardi, etc), and it is a necessary part if you want to install the aftermarket racing steering wheel. The steering wheel hub package comes with 1 x hub boss kit, 6 screws and 1 wrench for installation.

This combo package also comes with a ball bearing lock quick release hub kit. The purpose of quick release kit is to allow you to detach the aftermarket steering wheel easily by just clicking the quick release button. This quick release kit is made of light weighted aluminum, and it is 33 mm/1.3 in tall and approximate 3.5" diameter. This quick release kit also comes with 6 screws and a wrench for installation. Installation is not included, professional installation is highly recommended.

Align the steering wheel to the boss kit by rotating the boss kit till the steering wheel is in the right direction. Then use your hex key and secure the steering wheel in place.

• Step 1: Preparation Before you remove the stock steering wheel, open your hood and disconnect the negative terminal of your battery, this is to prevent your horn from going off while working on the steering wheel or blowing the horn fuse.
• Step 2: Removal of the Horn Stick your flat head screw driver into the slit of the horn button and pry it out carefully.  It should pop out with ease.  Disconnect the wire connections for the horn and place the horn button aside.  (If you car has air bag, additional steps might be needed, and you should seek help with professional to install the steering wheel)
• Step 3: Unbolting the steering wheel: After taking out the horn, it should look like the photo above, unscrew all the screws and then use your 19mm socket attached to the breaker bar to unbolt the steering nut in the middle. Be careful as it is fairly tight and be careful not to smash your windscreen with the breaker bar. Once the nut is off, pull on the steering wheel and rock the steering wheel left to right and up and down to loosen it, it will be very tight, this might take some force.
• Step 4: Attaching the hub boss kit and aftermarket steering wheel: Now you will need to do this step carefully as you want the steering wheel to be straight, if your off by a hole, your steering wheel be to one side while your driving straight, and you'll have to realign the wheel again. Place the boss onto the column and pull the horn wires out as you don't want them stuck inside the boss kit when you install the horn.
• Step 5: Wiring up the horn: Connect the 2 little wires from the boss kit and the steering wheel to the horn, it doesn't matter which wires go where on the horn button, it just needs to complete a circuit when you push down on the horn. Now once that's done drop the horn button into place. Making sure the metal parts on the button don't touch any other metal surface because the horn will then always be honking and you'll have to redo this part.