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Author
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Topic: Pinion Angle Clarification
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afret
Gearhead Posts: 180
From: Lancaster, CA
Registered: Feb 2003
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posted 03-10-2003 05:09 PM
   
I recall reading an earlier thread where Alex stated that an auto car worked well with about 2-3 negative degrees on the pinion. This is relative to the angle of the trans output shaft, right? If my output shaft is pointed 3 degrees down, then my pinion should be at 0 degrees or 1 degree up. Is this right? Don't you want the 2 close to parallel under power? Thanks.
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steve'66
Gearhead Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 03-10-2003 10:18 PM
Yes, you've got the idea.But the angle depends on the type traction bar and the spacing you leave between the snubber and the leaf spring. I use a negative 5* angl on the '66 with loose slappers. SteveW
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afret
Gearhead Posts: 180
From: Lancaster, CA
Registered: Feb 2003
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posted 03-11-2003 12:30 PM
Thanks Steve. I have Caltracs so I figure 2-3 negative should work ok.
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steve'66
Gearhead Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 03-11-2003 11:26 PM
You're welcome,What you don't want to happen is for the pinion angle to rise above 0* under acceleration. You want the pinion to climb the ring gear and not go over the top.  SteveW
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