Driveshaft phasing...

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Oct 9, 2012 | 09:18 PM

RUSTANG67

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Driveshaft phasing...

'02 F250 4x4 extended cab Lariat 8' bed. Just had the front universal joint and carrier bearing replaced. Now the truck has a distinct vibration at low speed.

I'm wondering if the universal joints were phased properly when it was reassembled. This is the rear driveshaft that has a carrier bearing mid-ship.

Oct 9, 2012 | 09:54 PM

crop harvester

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look to see if repairman left timing mark for assembly. if not you could look at another truck, but without marks could be 180degrees off 50/50 chance.

Oct 9, 2012 | 10:20 PM

BadDogKuzz

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From: Gary,Indiana

Or pull it back out and have it balanced most shops charge less than $100. My local driveshaft shop charges $75 for a 2 pc driveshaft. But I would start by doing what Harvester said.

Oct 10, 2012 | 12:04 AM

KelVarnson

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Even if it's balanced it may cause vibration if it's not phased correctly.

Oct 10, 2012 | 06:13 AM

RUSTANG67

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Anybody have any pics?

Oct 10, 2012 | 06:24 AM

DISLFVR

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From: Mid Oh. Ponderosa

Check out the eighth post, there's a link with pics.
https://www.ford-trucks.com/forums/1...l#post11893602

Oct 10, 2012 | 07:19 AM

RUSTANG67

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Thanks for the link but I'm not convinced that applies to a 3 joint shaft with carrier bearing. I have a Borg Warner tech document (they may rockwell style driveline) that says the phasing is different. But this may be for off-highway only but I want to be sure before I go through the trouble of re-phasing the shaft.

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Oct 10, 2012 | 10:51 AM

mec500

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a u joint that was damaged or installed incorrectly can cause vibration also check for loose bolts

Oct 10, 2012 | 11:34 AM

#10

RUSTANG67

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At lunch I crawled underneath another F250 with carrier bearing and the bearings are clocked as mine are. So I think it's time I checked for loose bolts, etc. as mentioned.

Oct 10, 2012 | 11:06 PM

#11

crop harvester

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or could of been assembled 180 degrees off from original position, or like mentioned before may need to go to driveline shop for inspection & balancing if dont find anything else.