i just put a new 5 speed tranny in my 91 civic hatch. the problem im havin is when im just cruisin it grinds goin into 5th gear, but when i speed shift it don't. i don't know whats wrong. ne1 know whats wrong wit it?

 

Is your clutch properly adjusted?

 

yes it is. its only 5th gear that grinds.

 

who speed shifts into 5th anyway. slow down, stop speeding excessively.

 

When you swapped in the new 5speed what did you use for oil?

I would throw in some GM syncromesh with friction modifier, did wonders for my tranny as i WAS just running 10w30(Not the best idea).

How new of a tranny are we talking? Make sure the bolts on your shiftlinkage to shifter and bushings are all tight and good.

 

its a rebuilt LX tranny, n i'm usin 20 w50 oil. made sure shift linkage bolts were tight when i put it in. thanks for the tip bout the syncromesh really helped. still grinds some tho.