I noticed while greasing the truck the other day some play in the clutch shaft that quickly disappeared as I injected grease. This is in a 97 379 Cat engine w/13spd the cross shaft that goes through the clutch housing or bell housing on the left side.
Question is can this bushing be replaced with the transmission in the truck and if so what is the difficulty level?
I have a Peterbilt custom maintenance manual but, it doesn't go into the bell housing, just describes the linkage with a parts diagram.
Thanks, Bobby
Clutch shaft bushing
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Luwi67, Apr 11, 2018.
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Probably the most neglected grease fittings on a truck. Lots of shops neglect them,even when the trans is out. I've never tried to replace them on the truck,would be extremely difficult. There is a clamp bolt or two and a woodruff key on the bearing fork holding it to the shaft inside the bellhousing. They would have to be removed,to drive the shaft to one side to get to the bushing.It would depend if you had enough access through the bellhousing opening to get to them,and enough room on the outside of the bell to get the old bushings out and new ones in. Then you would have to do this again on the other side. Even then I believe it would still be very difficult. If they're not that bad,keep them greased until the next time the trans is out.
Trans out,piece of cake.Luwi67 Thanks this. -
Perty much impossible to change that bushing and shaft in truck..
That's usually always done when clutch time. If it's not causing a issue and its shifting fine with no clutch issues leave it alone till next time trans is out. -
Will do, thanks guys.
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The Left side shaft is no doubt shot as well but ad has been said, this is a job for when the trans is on the ground.
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on mine the cross shaft bushings are bad and the input shaft should have been replaced neither was done when a clutch was put in prior to my ownership. unfortunately i don't know of a way to fix it without dropping the trans, on mine it gives a very sticky feeling to the clutch pedal travel. its just kinda one of them things you have to live with until the next time the transmission comes out. greasing it often helps. iv been waiting till i have a surplus in the repair fund to drop the 13 speed and put a 18 in it with a new Eaton easy pedal clutch. the way this last year went it might not get done till something breaks....lol
Tug Toy Thanks this. -
The fork is bolted and keyed to each shaft. I can't see it being able to be replaced with the transmission mated to the engine.
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Same with my transmission when it had a new clutch put in several years ago. I had no idea at the time what all I should have had done. A lot of shops will only do what they told and really nothing more because they rightly assume most guys don't really want to spend what's gotta be spent to do everything that ought to be done. My bushings have been shot for several years now but the clutch is just fine. Most times putting it in 2nd or low gear to start off I just shut the truck off then ease it into gear as I'm restarting it to avoid grinding. You should do a video on this when you get around to it.SAR and Ezrider_48501 Thank this.
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Friend of mine just had his clutch replaced while I was away and he had to replace the clutch housing because the shaft wore through the bushing and into the housing.
rollin coal Thanks this. -
i can't tell you how many times i heard that threw my cam job fiasco "no one wants to pay for the additional diagnostic time to measure individual parts or pay for additional parts" to witch my answer was always i expect a through repair on anything that is done on my truck cost is secondary. a little more upfront is a lot cheaper in the long run.SAR, rollin coal and AModelCat Thank this.
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