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Thread: Pinion angle on IRS?
          
   
   

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  1. #3
    staleg's Avatar
    staleg is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2004
    Location
    Norway
    Car Year, Make, Model: 34 Ford Roadster High Boy
    Posts
    154

    My english could probably be a lot better.

    I've been told that to avoid vibrations in the drive shaft, the pinion angle should be parallell with the outgoing axle from the transmission (parallell does not mean at the same high.) This isolated fact has nothing to to with what kind of rear axle is used. A drive shaft who wibrate because of zero degree on the rear halfshaft and 3 degrees on the front halfshaft, will do so no matter live or independent axle, I suppose.

    Normally a CSB motor leans back with app 3 degrees. That mean the pinion angle must point app 3 degrees upwards to avoid those vibrations.

    On a live axle a given pinion rake does not affect the up and down movement, but on the Jaguar independent rear axle the the pinion is horisontal when the wheel moves vertical. That's the issue.
    Last edited by staleg; 11-17-2006 at 05:41 AM.

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