Grinding noise in bellhousing ):
 

in my bellhousing of my saginaw 3speed when i let the clutch out it makes this grinding/rubbing noise/ the truck will jerk if you try to move it. i have the transmission yet just not the bellhousing because those bolts are soo tight and hard to get to but i will get that off tmw im just curious of whats going on I MISS MY TRUCK!

Re: Grinding noise in bellhousing ):
 

Possible your clutch is just that worn that the rivets are grinding the flywheel.
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Re: Grinding noise in bellhousing ):
 

sorry but i forgot to add i just put a clutch in when i did the engine swap

Re: Grinding noise in bellhousing ):
 

Did you do a new pilot bushing as well? What about the pressure plate? What all is new And used underneath?
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Re: Grinding noise in bellhousing ):
 

Did you put your disc in backwards?

Re: Grinding noise in bellhousing ):
 

i did not put in a new pilot bushing but my clutch is installed correctly ive been driving the truck everyday until now

Re: Grinding noise in bellhousing ):
 

Could possibly be clutch chatter if the pilot is worn. If you replace it find an oilite type bushing
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Re: Grinding noise in bellhousing ):
 

i also forgot to add with the clutch out at idle you can look at the clutch fork and it vibrates very bad and so does the clutch pedal

Re: Grinding noise in bellhousing ):
 

Here's a couple of thoughts. First about the pilot bushing. You can buy an actual bearing for this application. GM used them in the early diesel trucks. Second, with your noise problem. Two thoughts, first is your throwout bearing may have crapped out. Second would be that some of the clutch cover bolts may be coming loose.

Re: Grinding noise in bellhousing ):
 

the throwout bearing seemed fine but when i took the transmision out the throwout bearing just kind of fell out..

Re: Grinding noise in bellhousing ):
 

The throw out bearing should stay on the clutch fork unless it pulled out when you pulled the trans. You have the fork clips in the inside if the groove of the throw out bearing?
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Re: Grinding noise in bellhousing ):
 

Wouldn't suggest a bearing. Those are known to fall apart and chew up the input shaft and the input bearing gets beat as well. A good bushing has done the job since the early days.
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Re: Grinding noise in bellhousing ):
 

i had a "mechanic" install the the throwout bearing i really dont know how he had it

Re: Grinding noise in bellhousing ):
 

Ok well take it all apart and we can guide you in getting her done and back on the road. Worst we can do is fix it right?
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Re: Grinding noise in bellhousing ):
 

I agree with your thoughts on a bushing. I hadn't heard of the bearings giving problems though. Anyway lets get this truck fixed!!!!

Re: Grinding noise in bellhousing ):
 

well guys a bit of and update but first of all i wanted to say thanks, but i got the bellhousing off and there was metal shavings in it! it was getting dark so i quit for the night but i will be back at it soon!

Re: Grinding noise in bellhousing ):
 

Well not a good start but let's hope it's nothing Superbad.
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Re: Grinding noise in bellhousing ):
 

Any updates???

Re: Grinding noise in bellhousing ):
 

well guys, i started the truck without the traqnsmission hooked up and it sounded beautiful, took the pan off the transmission and found chunks of metal and steel balls. lol. good thing i found 2 700r4s for 100$ sorry it took me so long to update

Re: Grinding noise in bellhousing ):
 

So an input bearing or throwout bearing failure I presume?
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Re: Grinding noise in bellhousing ):
 

throwout bearing was fine, so i guess it was the input. i dont know much about transmissions this was my first truck and my first engine swap/rebuild and so on, but heres the pieces we found

Re: Grinding noise in bellhousing ):
 

Yup internal bearing. Saginaw trans right? Those aren't to hard to find
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Re: Grinding noise in bellhousing ):
 

yeah, its a saginaw. this is the 2nd one that has been destroyed in my truck. Having a heavy foot doesnt help though

Re: Grinding noise in bellhousing ):
 

Yup late saginaws are pretty weak. Time to upgrade.

Re: Grinding noise in bellhousing ):
 

yeah, it was fine when i had my 250l6 in there and now with a mildly built 350 it didnt even last 2 weeks