mistah mofro Posted January 15, 2012 Share Posted January 15, 2012 Friend got his 73' 240z he was told that it had a five speed out of a 2dr 280zx. After i got it from him a few months later the tranny gave way, so i picked up another transmission and realized the driveshaft doesn't mesh with the transmission i have. So do i need a zx driveshaft or some type of driveshaft combo? Btw for now im running an r180. Thanks Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 15, 2012 Share Posted January 15, 2012 How does it "not match"? And which transmission doesn't match, the old one or the new one? What kind of transmission did you get? What kind was in before? Lots of combinations possible. A ZX driveshaft would be too long for a Z, by about 1/2 inch. Maybe that's why the first transmission failed. Quote Link to comment Share on other sites More sharing options...
_Donovan_ Posted January 15, 2012 Share Posted January 15, 2012 You need to know what trans you have and hopefully the drive shaft from the car it came out of will fit. But, if it does not then you may need to have a shaft made for it. Quote Link to comment Share on other sites More sharing options...
mistah mofro Posted January 15, 2012 Author Share Posted January 15, 2012 It doesnt match the new trans i got, its another five speed from 280zx but dont remember the year. Previously in my car was apparently a 280zx tranny but the part that doesnt match up is the teeth on the driveshaff to the trans. My first trans would always shoot out fifth gear and eventually spread(year of driving), i wouldnt think a driveshaft would do something like that, plus if it be half inch longer i wouldnt think it would fit all together. Is there a difference between the 280zvs280zx driveshafts? Quote Link to comment Share on other sites More sharing options...
mistah mofro Posted January 15, 2012 Author Share Posted January 15, 2012 You need to know what trans you have and hopefully the drive shaft from the car it came out of will fit. But, if it does not then you may need to have a shaft made for it. Yeah i was thinking that maybe he told him it was a zx tranny rather than a 280z. If i find the matching driveshaft and its too long can i just swap the yokes (i think thats it is)? Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 15, 2012 Share Posted January 15, 2012 Looks like they introduced a new type of drive shaft in 1982 for the turbo. Maybe to match the FS5R90A transmission, which might have a different spline ("gear") count or shaft diameter. Check the FSM to see what kind of transmission you have or had. Why guess when you don't have to? The yokes aren't swappable. And a drive shaft that's too long will probably damage your transmission. Quote Link to comment Share on other sites More sharing options...
Leon Posted January 15, 2012 Share Posted January 15, 2012 If your old transmission is truly a Nissan (not Borg Warner) ZX unit, then the transmission you picked up is not a Z or ZX one. The spline count on all Z and ZX transmissions is the same, barring the T5 that came with the ZX Turbo (not sure on that one), so there should not be spline meshing issues. Quote Link to comment Share on other sites More sharing options...
RB240zDET Posted January 15, 2012 Share Posted January 15, 2012 If your old transmission is truly a Nissan (not Borg Warner) ZX unit, then the transmission you picked up is not a Z or ZX one. The spline count on all Z and ZX transmissions is the same, barring the T5 that came with the ZX Turbo (not sure on that one), so there should not be spline meshing issues. This. Also a driveshaft that does not have proper play/spacing will mess your transmission. I would highly suggest going to a custom/special driveshaft shop and having a custom made shaft. They know everything needed in a proper driveshaft. I had a custom one made for my track 280z and it is flawless. Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 15, 2012 Share Posted January 15, 2012 (edited) Can anyone say for sure that the FS5R90A (T-5) transmission has a different spline count or diameter on the output shaft? I've browsed around the forums but can't find a definite statement. Mofro may have a T-5 transmission or a T-5 drive shaft. If he has a 71B transmission then any old late 240Z, 260Z or 280Z coupe (not 2+2) drive shaft should work, except the 1975 280Z. Edit - Apparently the T-5 came with a different spline count according to this write-up, about 1/2 way down the page - http://datsunzgarage.com/borg/ I feel smarter now... Edited January 15, 2012 by NewZed Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 15, 2012 Share Posted January 15, 2012 (edited) Looks like they introduced a new type of drive shaft in 1982 for the turbo. Maybe to match the FS5R90A transmission, Of course, it could be the automatic drive shaft also. Which could also be a drive shaft that Mofro ended up with. Edited January 15, 2012 by NewZed Quote Link to comment Share on other sites More sharing options...
mistah mofro Posted January 15, 2012 Author Share Posted January 15, 2012 alot of info within a few hours, anyone know the spline count or a way i can identify if its t5 trans/driveshaft. Ill try to jam the driveshaft one more time, RB240z how mucb was your driveshaft? Seriously tho thanks Quote Link to comment Share on other sites More sharing options...
RB240zDET Posted January 15, 2012 Share Posted January 15, 2012 I had them make and use all brand new parts so it was a little pricey. But all said and done 300 dollars. But they used serviceable joints, brand new slip yoke and beefier and stronger joints all around. They called it their racing/drifting shaft and they rated the shaft for 1000hp. Overall I am more then happy and they had my driveshaft done in an hour... Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 16, 2012 Share Posted January 16, 2012 alot of info within a few hours, anyone know the spline count or a way i can identify if its t5 trans/driveshaft. Ill try to jam the driveshaft one more time, RB240z how mucb was your driveshaft? Seriously tho thanks Count the splines (before jamming). Look at the transmission drawings in the FSM. Quote Link to comment Share on other sites More sharing options...
mistah mofro Posted January 16, 2012 Author Share Posted January 16, 2012 Will do Quote Link to comment Share on other sites More sharing options...
mistah mofro Posted January 16, 2012 Author Share Posted January 16, 2012 E Quote Link to comment Share on other sites More sharing options...
RB240zDET Posted January 17, 2012 Share Posted January 17, 2012 Any luck on finding out how many splines you have? Quote Link to comment Share on other sites More sharing options...
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