carrier bearing?
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Fleet Mechanic
Joined: Dec 2004
Posts: 1,365
Likes: 6
From: Ketchikan, AK.
carrier bearing?
hi all, i have a 99 f250 sd, 5.4L 4x4, super cab short bed. i have been doin some research on lift kits, and have been hearing about carrier bearing drop downs... well, i dont have a carrier bearing, and was just wondering what would determine if a truck needed one? are they only on the long beds, to provide more support for the longer drive shafts? thanks in advance for the info.....
Posting Guru
Joined: Nov 2003
Posts: 1,931
Likes: 5
From: Allen, Tx
I have a regular cab long bed 2WD 5.4L F250 which has a wheelbase 5 inches shorter than your truck and I (unfortunately) have a two-piece driveshaft and therefore a carrier bearing. So 4WD or 2WD, wheelbase, engine etc... seems to have very little to do whether you get a one-piece or a two-piece driveshaft. The reason behind the two-piece driveshaft is that supposedly, they can take more torque. Torque is distributed among 3 u-joints instead of just two. There's another reason too, but I forget what it is. ( Don't beat the messenger, that's what I was told.) Which truck gets one seems to be determined by the phase of the moon at assembly time and the last score of the Edmonton curling team. (They have a cross-reference chart and everything.) The good news is that with a one-piece, you won't have to mess with it. (and mess with the prospect of destroying your pinion seal and bearings because of vibrations made by incorrect carrier bearing angle.)
Here, a picture of my nice (and shimmed) carrier bearing. You can print it out and tape it under your truck so you too can have a carrier bearing.
https://www.ford-trucks.com/user_gal...=55369&width=0
Here, a picture of my nice (and shimmed) carrier bearing. You can print it out and tape it under your truck so you too can have a carrier bearing.
https://www.ford-trucks.com/user_gal...=55369&width=0
Last edited by n578md; Feb 24, 2005 at 08:17 AM.
Thread Starter
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Fleet Mechanic
Joined: Dec 2004
Posts: 1,365
Likes: 6
From: Ketchikan, AK.
well, i do have 3 u-joints on the rear drive shaft, but i think its still technically a 1 piece shaft. the front 2 are right next to each other in that (part).... im not sure of the name. but there is nothing bolted to the frame like a carrier bearing is. thanks for the help guys.....
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