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Why you need a non-AB shaft for your non-AB wheel... Posted by Larry West [Email] ![]() ![]() ![]() In Reply to: Re: Steering Wheel Teeth question....., 900 Aero ![]() |
The first reason I can think of that you can't use a non-AB wheel with an AB shaft is the horn contact.
In the AB wheels, the horn contact is part of the "clockspring" mechanism that also transfers the AB test and detonation signals from and to the bag.
With a non-AB wheel the horn contact is a simple brass slipring with a contact that protrudes from the backside of the wheel hub.
On the AB shaft, there is no place to mount the slipring, that space being taken up by the clockspring.
I've never had the two on the garage floor side-by-side, so I couldn't say whether that was the only difference or not. The length of the shaft could be different, among other things. It might be possible to bodge together something that would work as well, but you'd need to have both to see the differences. And at that point, you may as well just install the one that will work.
_______________________________________ Current: 2002 9-5 Aero Kombi Cosmic Blue 2000 9-5 SE sedan, Imola Red 1990 900S Rose Quartz, Auto Past: 1999 9-5 LPT Combi 1999 9-5 LPT sedan 2002 9-5 Arc 1990 900 5-speed 1986 900 turbo Convertible 1991 9000 turbo 1980 99 GLi 1986 900 turbo 1986 900 S 1991 900 turbo 1984 900 turbo 1976 99 GL
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