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Dirk,
I endorse the elimination of any sloppy or unnecessary joints in the steering. As Rog says, the difference can be dramatic.
In my case, the original E-M design involved three steel u-joints and a pillow block bearing to locate the center shaft.
From the steering wheel there is a short shaft and a u-joint, followed by another short shaft and a second u-joint; this second shaft was supported by a pillow block bearing since it had a u-joint at each end. Then a third short shaft connects to the rack via a third u-joint.
Kinda like this:
------(X)-------(X)------(X)-|
Strg
Wheel - - - - - - - - - - - - - rack
After the mod, the center u-joint is gone, leaving something like this:
------(X)----------------(X)-|
Strg
Wheel - - - - - - - - - - - - - rack
The original steering layout was designed to clear the headers for a side exhaust setup. I have the undercar exhaust so the clearance was fine with a one-piece steering shaft. Something to assess before you start changing things.
If you have a rag joint anywhere, substituting a steel joint can likely offer improved steering accuracy.
None of this has anything to do with how quick the steering is, as requested by andyl in his original post....
Tom
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Wells's law of engine size: If it matters what gear you're in, the engine's too small!
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