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#66817 10/05/2006 3:25 AM | Joined: Dec 2005 Posts: 27 Junior Member | | Junior Member Joined: Dec 2005 Posts: 27 | Can you set the penion angle on your rear end
without your motor or trans in the truck?
Any help would be great | | |
#66818 10/05/2006 3:57 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | It would be best to at least have the engine/tranny mocked in. Part of the angle relies on the angle that the output of the trans is at. The idea is hat you want the operating angls of the 2 U-joints to be the same. This is to prevent vibration and to extend the life of the U-jounts. there's only so much angle that they can operate at, usually 11 degrees max, so the setting of both the pinion and trans agles is crucial and they are dependant on each other.
Bill Burmeister
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#66819 10/05/2006 5:28 PM | Joined: Jun 2006 Posts: 60 New Guy | | New Guy Joined: Jun 2006 Posts: 60 | I've read somewhere that you should also have most if not all of the expected load on the truck when you set the angle.
if you set the angle without the bed on the truck the angle changes when the weight of the bed is added, it loads down the springs.
Can't say I'm talking from experience though, we haven't got that far on our truck yet.
Gary,
Kelly, and Family
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#66820 10/05/2006 8:29 PM | Joined: Feb 2000 Posts: 769 Shop Shark | | Shop Shark Joined: Feb 2000 Posts: 769 | If, after you have the angle set, and you are not happy with the results, you can adjust the angle with tapered shims between the axle and the springs. | | |
#66821 10/07/2006 2:08 AM | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | No, what would you be referencing the angle to? The pinion is set from 2 to 4 degrees down from the centerline of the crankshaft/output shaft centerline. CenTex is correct in stating the angle is best set when the normal weight is on the truck. Two things occur when the angle is correct, when accelerating the pinion rises and pushes the front yoke deeper onto the splines until zero degrees is reached then starts to draw it back out as it goes above zero degrees and, anything off of zero degrees rotates the U-joint in the bearing cups thus preventing flat spots on the needle bearings.
Evan
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#66822 10/08/2006 3:28 AM | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | This explains everything about driveshaft and pinion setup.
Dana Spicer should know better than anyone.
I think that the type of u-joint we use was invented by Spicer?
http://www.roadranger.com/ecm/groups/public/@pub/@roadranger/documents/content/rr_dsig-3311.pdf | | |
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