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Old 09-16-2013, 12:42 PM
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Carli Suspension

In need of some advice. Just installed a Carli 2.5 inch Starter System/Leveling Kit. Truck ride MUCH MUCH better. However, I have a slight "shimmy" during takeoff (fast or slow). I have installed 2 degree shims to negate the rear lift and that helped. Should I keep shimming or is there alternate adjustments to the rearend/driveshaft that could be done? I'm positive it is the angle, just baffled that such a small change can make that much of a difference. Maybe the 3.31 gears make a difference...

Thanks
Sig
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Old 09-16-2013, 01:01 PM
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Check your u-joints
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Old 09-16-2013, 04:36 PM
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Thanks for the reply but have gone through everything obvious. U-joints were top of the list. No problem there...
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Old 09-17-2013, 07:46 AM
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Just replied in your other thread, you're going to want to do a small spacer on your drive-shaft carrier bearing. That is what causes 99% of take of shudders.
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Old 09-17-2013, 09:25 AM
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Driveshaft carrier bearing? Can you give me more specifics? Also, how does it need to be spaced?

Maybe on to something. THANKS!
Sig
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Old 09-17-2013, 09:31 AM
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Quote:
Originally Posted by OCVeloMan View Post
Just replied in your other thread, you're going to want to do a small spacer on your drive-shaft carrier bearing. That is what causes 99% of take of shudders.
This is partially correct... if you space the carrier bearing, you are gonna want to remove the rear shims as it will be too drastic of a difference...
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Old 09-17-2013, 10:05 AM
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Missed the part about the rear shims. That is also correct. you're going to want one or the other but the carrier bearing spacer is the correct way to do it as it shares the additional angle among all the u-joints rather than leaning the pinion angle up.

It's the bearing that holds the center junction of your two-piece drive-shaft in place. You need to remove the two bolts that hold the assembly to the bed cross-member and use longer bolts and spacers (google search carrier bearing drop f250) to reattach the support at a lower point to lessen the operation angle of the drive-shaft.
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Old 09-17-2013, 10:53 AM
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Quote:
Originally Posted by OCVeloMan View Post
Missed the part about the rear shims. That is also correct. you're going to want one or the other but the carrier bearing spacer is the correct way to do it as it shares the additional angle among all the u-joints rather than leaning the pinion angle up.

It's the bearing that holds the center junction of your two-piece drive-shaft in place. You need to remove the two bolts that hold the assembly to the bed cross-member and use longer bolts and spacers (google search carrier bearing drop f250) to reattach the support at a lower point to lessen the operation angle of the drive-shaft.
Got it! Know exactly what you are referring to. Many THANKS!!!
Sig
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