throwout bearing
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throwout bearing
Hi i have a 1983 Ford F-250 with a 351w and a 4 speed in it. I believe that the throwout bearing is going out and i have never replaced one before. Is there a guild out there that explains how to do so step by step. and any other info about the removal process would be great... thank you
FTE Legend
Joined: Jul 2010
Posts: 32,875
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From: Northeast, OK
The transmission in your truck is going to be quite heavy so you will need a transmission jack or a really strong friend. But here's how I would do it, assuming it is a 2wd:
- Chock the wheels
- Remove the driveshaft
- Remove the shifter and clutch linkage
- Put the jack under the tranny and take the weight off the rear cross member
- Remove the rear cross member
- Put a jack and a piece of wood under the rear of the engine to keep it from tilting when you remove the tranny. It won't take much, just enough to steady it.
- Loosen the bell housing/engine bolts and remove four of them in the corners
- Replace those four bolts with guide pins made out of bolts with the heads cut off. Just thread them in far enough to ensure they'll hold the load.
- Pull the other bolts
- Slide the transmission back and lower it when it comes free of the clutch and guide pins
- Remove the throwout bearing and replace it
- Reverse the above procedure
FTE Legend
Joined: Jul 2010
Posts: 32,875
Likes: 48
From: Northeast, OK
Yes, it is similar. BUT, when you pull the transfer case off the tranny you will probably have some lube run out. Don't panic as there shouldn't be that much as it is just stuff that leaked past the seal in the tranny or the t-case. No need to drain the fluids.
It is possible to pull the tranny and t-case together, but the t-case sets off to the side and makes the combo unbalanced so it takes a very good tranny jack with a large base. And, you must lash the combo down to the jack tightly. I don't think it is worth it so I pull the t-case off before pulling the tranny.
Oh, and you have to pull the shift linkage to the t-case.
It is possible to pull the tranny and t-case together, but the t-case sets off to the side and makes the combo unbalanced so it takes a very good tranny jack with a large base. And, you must lash the combo down to the jack tightly. I don't think it is worth it so I pull the t-case off before pulling the tranny.
Oh, and you have to pull the shift linkage to the t-case.
Senior User
Joined: Dec 2013
Posts: 129
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The transmission in your truck is going to be quite heavy so you will need a transmission jack or a really strong friend. But here's how I would do it, assuming it is a 2wd:
- Chock the wheels
- Remove the driveshaft
- Remove the shifter and clutch linkage
- Put the jack under the tranny and take the weight off the rear cross member
- Remove the rear cross member
- Put a jack and a piece of wood under the rear of the engine to keep it from tilting when you remove the tranny. It won't take much, just enough to steady it.
- Loosen the bell housing/engine bolts and remove four of them in the corners
- Replace those four bolts with guide pins made out of bolts with the heads cut off. Just thread them in far enough to ensure they'll hold the load.
- Pull the other bolts
- Slide the transmission back and lower it when it comes free of the clutch and guide pins
- Remove the throwout bearing and replace it
- Reverse the above procedure
Senior User
Joined: Dec 2013
Posts: 129
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@gary, appreciate the info. That's exactly what the shop told me, but I wanted a second opinion
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Moderator
Joined: Jan 2001
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Likes: 2,735
From: Virginia
I would not do all this to replace a throwout bearing. The clutch would be replaced at the same time, especially if you are paying someone to do it. You are paying all that money for the labor, the clutch will be cheap. Get a kit and it will give you everything you need. Also if your truck has the internal slave cylinder, replace that too. If it's external, it's not that important, it can be replaced later.
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4wd Low
Joined: Sep 2013
Posts: 12
Likes: 0
Yes a clutch kit is cheap...and only 4k miles later mine is going back in for another throwout bearing. Started making noise within a month after it was put in. I would not recommend NAPA for your clutch kit.
And no, I am not a clutch pedal rider.
And no, I am not a clutch pedal rider.
Laughing Gas
Joined: Sep 2012
Posts: 1,100
Likes: 6
From: Georgia
I'd also inspect the pilot bearing, which reminds me, I need to do a clutch job on my 460 F-250 4WD.
Will removing the engine rear cover plate give me enough access to see if I have an 11" or 12" clutch or if my flywheel is drilled to take a 12" clutch?
I'd like to get a kit before pulling the gearboxes.
Will removing the engine rear cover plate give me enough access to see if I have an 11" or 12" clutch or if my flywheel is drilled to take a 12" clutch?
I'd like to get a kit before pulling the gearboxes.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
Tom, The plate goes on before the flywheel.
I don't know of a way to remove it first.
Not certain about your '85, but I can say my '87/T-19 combo was not drilled to accept the 12" clutch needed for the ZF swap I did.
That said, I am no expert and can only relate my own experiences.
You might look up the various parts online and see if the numbers match, or what were options for your particular year.
I don't know of a way to remove it first.
Not certain about your '85, but I can say my '87/T-19 combo was not drilled to accept the 12" clutch needed for the ZF swap I did.
That said, I am no expert and can only relate my own experiences.
You might look up the various parts online and see if the numbers match, or what were options for your particular year.
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
I'd rent a puller for the pilot bearing, I think it cost me $12 for 4 hours (but that was several years ago and I could be misremembering).
A transmission jack is necessary for reinstallation but I've always used floor jacks when removing. I also remove the transfer case, first, mostly cuz of the balance issues I fear..
A transmission jack is necessary for reinstallation but I've always used floor jacks when removing. I also remove the transfer case, first, mostly cuz of the balance issues I fear..