vibration on take off pulling a load
Tuned
Joined: Jan 2002
Posts: 491
Likes: 0
From: Fort Fun
I had that problem too with my '03 F350 LB 4x4. I replaced the carrier bearing, shimed the carrier bearing and neither helped too much. Then, I replaced the rear U-joint and my problem is G-O-N-E. I just pulled a load of scrap metal that netted 12,600 on a trailer that had to weigh 5k empty and had NO shudder.
Just my $.02.
Big
Just my $.02.
Big
New User
Joined: Feb 2011
Posts: 1
Likes: 0
I've owned a 99 and 01 F350, an 03 Dodge 3500, and currently own a 08 F350. Haven't corrected it yet on the current but I did on the three previous. I corrected them by putting angle shims at the rear, thinnest side to the front, this will allow the pinion to point down (negative -1, -2, etc) When you hit the throttle the pinion will go up, if you don't have enough negative pinion angle and the pinion passes zero degrees which is positive pinion angle, you will get shudder because of incorrect driveline angles.
Same thing can occur if the pinion has too much negative angle like a lifted truck. I have a light shudder but is more noticeable when towing the trailer, more weight on the rear will angle the pinion up further which is why it's more noticeable.Hope this clears things up
Same thing can occur if the pinion has too much negative angle like a lifted truck. I have a light shudder but is more noticeable when towing the trailer, more weight on the rear will angle the pinion up further which is why it's more noticeable.Hope this clears things up
Last edited by Torquerules; Feb 18, 2011 at 08:39 AM. Reason: Left info out
Elder User
Joined: Apr 2006
Posts: 524
Likes: 0
From: Taylorsville, UT
I've owned a 99 and 01 F350, an 03 Dodge 3500, and currently own a 08 F350. Haven't corrected it yet on the current but I did on the three previous. I corrected them by putting angle shims at the rear, thinnest side to the front, this will allow the pinion to point down (negative -1, -2, etc) When you hit the throttle the pinion will go up, if you don't have enough negative pinion angle and the pinion passes zero degrees which is positive pinion angle, you will get shudder because of incorrect driveline angles.
Same thing can occur if the pinion has too much negative angle like a lifted truck. I have a light shudder but is more noticeable when towing the trailer, more weight on the rear will angle the pinion up further which is why it's more noticeable.Hope this clears things up
Same thing can occur if the pinion has too much negative angle like a lifted truck. I have a light shudder but is more noticeable when towing the trailer, more weight on the rear will angle the pinion up further which is why it's more noticeable.Hope this clears things up
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