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Jeep Wrangler YJ
YJ General Discussion
Takeoff shudder causing transferase to move side to side.
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<blockquote data-quote="machoheadgames" data-source="post: 438355" data-attributes="member: 18789"><p>The pinion angle from factory is with the perches welded as they are....not with 6 degree shims.</p><p></p><p>Don't worry about the driveshaft slope for now. You need to get the angles of the joints themselves right. Your transfer case is at 7 degrees as you mentioned earlier, and that isn't changing. to run a stock driveshaft, you need your axle pinion angle to be around 6 degrees. the 1 degree difference in angles is to account for torque under load. This is how the factory set it up.</p><p></p><p>The problem is that you have lift, and lift makes the angles on that super short driveshaft problematic...you could install a transfer case drop kit which lowers the transfer case and also angles it down....if you did that, you would need to add probably about 2 degree of shim to the springs (after removing the 12) , to account for lowering the transfer case and matching its new angle.</p><p></p><p>for lifted Jeeps, the stock driveshaft is not a fantastic solution due to the angle restrictions. In stock form, the stock driveshaft is great and has no need for any improvement.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 438355, member: 18789"] The pinion angle from factory is with the perches welded as they are....not with 6 degree shims. Don't worry about the driveshaft slope for now. You need to get the angles of the joints themselves right. Your transfer case is at 7 degrees as you mentioned earlier, and that isn't changing. to run a stock driveshaft, you need your axle pinion angle to be around 6 degrees. the 1 degree difference in angles is to account for torque under load. This is how the factory set it up. The problem is that you have lift, and lift makes the angles on that super short driveshaft problematic...you could install a transfer case drop kit which lowers the transfer case and also angles it down....if you did that, you would need to add probably about 2 degree of shim to the springs (after removing the 12) , to account for lowering the transfer case and matching its new angle. for lifted Jeeps, the stock driveshaft is not a fantastic solution due to the angle restrictions. In stock form, the stock driveshaft is great and has no need for any improvement. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Takeoff shudder causing transferase to move side to side.
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