Here's one that retains the function of the horn. Great theft deterrent! A friend of mine just put one on his Datsun - not a Z, maybe a 510 I'm not sure. But it should fit a Z with the proper aftermarket wheel hub.

http://nar-spec.com/12630/23222.html

Here are the pics of my friend's install:

Column with the wheel off- http://www.datsun510.com/photopost/data/500/102Mwheel-off-med.jpg

Back of wheel- http://www.datsun510.com/photopost/data/500/102Mback-of-wheel-med.jpg

Stacked height (about 3/4")- http://www.datsun510.com/photopost/data/500/102Mstack-height-med.jpg

Nice looking unit! Good theft deturant for sure. Unfortunetly, it still won't stop the tilt flatbed truck with a hook/winch senerio!

I have the Grant system on mine & it works great. About 1/2 the price.

I don't really like the phrase "quick-release" when related to your steering wheel, tho.

I have the Grant system on mine & it works great. About 1/2 the price.

I don't really like the phrase "quick-release" when related to your steering wheel, tho.

What's the "grant system"?

The price went up since I got mine.

Grant Steering Wheel Security System

Does it allow for the use of the horn? That was the big plus with this one I posted.

Of course. I wouldn't have considered it unless the horn worked. You can get a ticket if you can't toot the horn.

thx

I don't really like the phrase "quick-release" when related to your steering wheel, tho.

Why?

"Quick Release" doesn't equate to "Random-Release". F1, Champcar, IRL, NAPCAR and a lot of other racer cars used quick-release Steering wheel hubs and don't have problems with them.

The layperson might think that a detachable steering wheel might mean that it might come off any time. They should go look at it and see just how "easy" it is to get it off:

first take the key out of the ignition, then find the wheel lock key. Put it in & turn to unlock. Then press the release lever & turn the wheen CCW. Then pull off.

For the same reasons that the racecar release comes off so easily is why they are all "Not for street use."

I've never seen anybody carrying a steering wheel at any car show tho.

Nobody here has driven with a vise-grip on steering shaft? Jed Clampet yes, but when moving around boneyard dogs it works. Sorry, but horn doesn't work that way though.