what are the difference? what are the symtoms of them going bad?

 

you can feel fore/aft play in the input shaft

you have replaced your throw out bearing....but still hear a noise.....but when you press the clutch pedal it goes away

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dan GSR &raquo;</TD></TR><TR><TD CLASS="quote">you can feel fore/aft play in the input shaft

you have replaced your throw out bearing....but still hear a noise.....but when you press the clutch pedal it goes away</TD></TR></TABLE>

huh?

 

Main shaft bearing noise can be heard with the clutch out but when you press on the clutch the noise goes away.

 

they make noise...easy
What dan gsr ment is that when your input shaft bearing goes bad, it kinda sounds like when your release bearing goes bad...
when you press on the clutch is goes away..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by quik1 &raquo;</TD></TR><TR><TD CLASS="quote">Main shaft bearing noise can be heard with the clutch out but when you press on the clutch the noise goes away. </TD></TR></TABLE>

people have been telling me that if the clutch is out and there's a grinding/knocking sound then it's the input shaft bearing. but if you step on the clutch pedal, it goes away. so is it the mainshaft or the input bearing?

 

could be theinput shaft bearing or if it sounds kinda like a helicopter it could be your release bearing

 

how would i know what to replace? should i just replace them all since i'm already going to open the tranny?

 

You might as well since they're cake to replace on the input shaft. You'll also need to re-shim the shaft.

 

Its one of them either way so pop it open and check them out. I would probabally just change them both.

 

what does re-shim mean?

 

well you need a helms manual

i hope your not trying this without one

and second.....the input shaft is another name for the main shaft

the other shaft in you tranny is the counter shaft.....

you obviously don't know what your getting into......