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2011-2014 Mustangs
Driveline/Suspension
Driveshaft Angle
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<blockquote data-quote="Toplait" data-source="post: 15743295" data-attributes="member: 189162"><p>Update:</p><p></p><p>So yesterday evening I pulled the old Harbor Freight Digital Angle Finder out of the tool box and of course the 2032 batteries are dead.</p><p></p><p>So while at work I bought some more 2032's and once I got off work I pulled the car into the shop and put the car blocks. When I say this I mean the cars wheel are resting on wooden blocks not elevated by the pinch joints or the frame. This is to elevate the car to be able to get under it and maintain the ride height and angle geometry of the drive-train.</p><p></p><p>Starting off the angle geometry looked good. Did not change at all it still said 1.5..."Scratch's head and slides back and fourth to the front and the back of the vehicle a few dozen times." I knew something was still wrong with the vibration I was getting even with a CV joint driveshaft from DSS. After hours of crawling around it hit me. /smack</p><p></p><p>The rear end pinion was out of phase! It was pointed up. So I shortened the upper control arm about an inch to bring the rear differential pinion facing down.</p><p></p><p>I took a measurement with my digital gauge. One on the front driveshaft U-joint. This is bolted to the transmission flange and does not wobble. I had to put the vehicle in neutral to get it level. This measurement said 2 or 88 depending on the direction the gauge is placed.</p><p></p><p> I took the 2nd measurement on the flange of the DSS driveshaft CV joint, "it was the best place that worked well with my digital gauge in a confined space." I managed set the Control arm setting to 1 to 1.3 or 89 to 89.3 degrees, depending on other locations of measurement. For example, using a flat edge on the back of the pinion flange to even taking measurements from the bottom of the pinion flange ect...</p><p></p><p>(So 2-1= 1) or (88-89= -1)</p><p></p><p>So its kinda late but I think ill finish eating dinner and go for a test drive just to make sure things don't fly apart on me.</p><p></p><p>Update: </p><p></p><p></p><p>All Fixed by what I can tell... The roaring noise on and off is gone. Even the high pitch pinion whine is gone. Other then that I think i'm gonna leave the pinion angle there for now until I can further test it in a more safer location.</p></blockquote><p></p>
[QUOTE="Toplait, post: 15743295, member: 189162"] Update: So yesterday evening I pulled the old Harbor Freight Digital Angle Finder out of the tool box and of course the 2032 batteries are dead. So while at work I bought some more 2032's and once I got off work I pulled the car into the shop and put the car blocks. When I say this I mean the cars wheel are resting on wooden blocks not elevated by the pinch joints or the frame. This is to elevate the car to be able to get under it and maintain the ride height and angle geometry of the drive-train. Starting off the angle geometry looked good. Did not change at all it still said 1.5..."Scratch's head and slides back and fourth to the front and the back of the vehicle a few dozen times." I knew something was still wrong with the vibration I was getting even with a CV joint driveshaft from DSS. After hours of crawling around it hit me. /smack The rear end pinion was out of phase! It was pointed up. So I shortened the upper control arm about an inch to bring the rear differential pinion facing down. I took a measurement with my digital gauge. One on the front driveshaft U-joint. This is bolted to the transmission flange and does not wobble. I had to put the vehicle in neutral to get it level. This measurement said 2 or 88 depending on the direction the gauge is placed. I took the 2nd measurement on the flange of the DSS driveshaft CV joint, "it was the best place that worked well with my digital gauge in a confined space." I managed set the Control arm setting to 1 to 1.3 or 89 to 89.3 degrees, depending on other locations of measurement. For example, using a flat edge on the back of the pinion flange to even taking measurements from the bottom of the pinion flange ect... (So 2-1= 1) or (88-89= -1) So its kinda late but I think ill finish eating dinner and go for a test drive just to make sure things don't fly apart on me. Update: All Fixed by what I can tell... The roaring noise on and off is gone. Even the high pitch pinion whine is gone. Other then that I think i'm gonna leave the pinion angle there for now until I can further test it in a more safer location. [/QUOTE]
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