driveshaft problem

[QuickSpoolSR]

I have an 89 240sx and i swapped in a blacktop s13 sr. I am having serious issues, i found out it is a type x and they sent me an e5 ecu. I repinned it and got it running. so i tried to drive it today and noticed the driveshaft bolts are rubbing the transmission itself which is making sparks, so i didnt make it far past the driveway. It is the original driveshaft, and when i put it on it was so hard to get on i had to use a jack, and it like popped in. I called frsport and they had no idea what was wrong. apparently my driveshaft should fit, but it seems too long. I cant even get it back off.

[QuickSpoolSR]

any ideas?

[QuickSpoolSR]

http://i654.photobucket.com/albums/uu268/johnw14151/67784_538450718941_66002439_31485026_6451373_n.jpg

Help me get this running!!

[l2edken]

snap a pic of the driveshaft itself instead

[energ]

sounds like you have an ABS car with a non-ABS driveshaft (ABS diff is longer than non-ABS diff, non-ABS driveshaft is longer than ABS drive shaft)

[omgRWDgoodness!]

^^ Could be what he said above, or one of a couple other things. First one is that since you have an '89, the driveshaft is from a SOHC tranny, so it could be a little longer than a DOHC one. Now, I don't know as much about S13s but I do know that when I had to replace my transmission the first time, it came from an S13 (in my S14) and the driveshaft had to be "persuaded" to fit similarly to what you described, even having to bend back the metal yoke dust cover thing to make it fit easier. If you have a J30 diff that could be a problem as well.

[QuickSpoolSR]

well if it is ok that it fits like that then why are the stock bolts rubbing the tranny causing sparks, also there is fluid leaking at the same spot

[omgRWDgoodness!]

How could any "stock bolts" be rubbing the transmission, there's no bolts where the driveshafts inserts into the yoke? Do you mean they're rubbing against the differential or the middle part where the two halves of the driveshaft connect?

[ILoveMyRHS13]

^^ Could be what he said above, or one of a couple other things. First one is that since you have an '89, the driveshaft is from a SOHC tranny, so it could be a little longer than a DOHC one.
KA trans' are the same, homie.

[iamtheyi]

^ driveshaft looks a lot different though

[omgRWDgoodness!]

↑

:werd:

[Matej]

^^ Could be what he said above, or one of a couple other things. First one is that since you have an '89, the driveshaft is from a SOHC tranny, so it could be a little longer than a DOHC one.
SOHC and DOHC transmission, driveshaft, and differential are the same, if I recall correctly. Although maybe not. Not sure. The culprit is possibly an ABS/Hicas differential, as someone said above.
Also, is it rubbing on the transmission itself, or the dust shield that goes on the end of the transmission? If it is only coming in contact with the dust shield, you can remove it for a temporary fix.

[QuickSpoolSR]

its rubbing the tranny itself causing sparks. Im heading over to my parents where the car is right now im gunna measure everything so the OG's of zilvia can tell me wtf is wrong

[xdumbxguyx]

did you remove the dust cap piece on the SR trans?
http://octanereport.com/upload/image/2010/07/1007-nismo-6-speed-transmission/nismo-sr20det-6-speed-transmission-02.jpg
black piece on the end of the trans

[Tantwoforty]

1 peice driveshaft...
problum solved.

[QuickSpoolSR]

http://i654.photobucket.com/albums/uu268/johnw14151/2010-10-1695165508.jpg

[QuickSpoolSR]

http://i654.photobucket.com/albums/uu268/johnw14151/2010-10-1695165513.jpg

[QuickSpoolSR]

i think the dust cover is pushed back, and as you can see the bolts are hitting metal.

I am down for buying a 1 peice, but i need to know what kind first.

It is 42 1/4 inches from the diff where it bolts, to the trans.

the diff is 17".

[ej2civic]

remove that dust shield and you'll be all set

[Motoskin]

face palm city

[QuickSpoolSR]

is the dust sheild metal? i thought it was just the rubber thing?

[omgRWDgoodness!]

is the dust sheild metal? i thought it was just the rubber thing?

The dust shield is metal on S13 trannies and that "rubber thing" on S14s, but in your picture the rubber was obviously worn away and there's what looks like metal underneath. There's the culprit of the sparks, so follow ej2civic's advice and remove it and you should be good to go. Either way, what the hell kind of driveshaft is that? There shouldn't be any bolts on the transmission (yoke) side of it :confused:

[Fries]

Remove the dust cover.

What diff are you running?

All the transmissions are within a 1/2" length difference, so the longer trans with an ABS diff could make things sticky too.

[Souljahzs13]

Wait... let me guess. Was your car an automatic before? Cause it would not mattter if you had Hicas or ABS because the would change the back second half of the driveshaft length. This looks like a auto driveshaft judging by the front half of the driveshaft.

[QuickSpoolSR]

http://i654.photobucket.com/albums/uu268/johnw14151/Untitled-1.jpg

This is out of the 89 fsm. I have the lower pictured shaft. Its called a-r, and the upper one is a-t, not sure what that means. the car had a manual trans when i got it, i guess im not 100 percent that it wasnt converted.

[MyblackS13]

I'm going to guess that the -t part number is from an automatic just because I have never seen one quite like that. I've been under a hand full of 240's but never an automatic. All of the stock driveshafts I've seen have looked just like yours.

To answer the driveshaft question. I have an aluminum driveshaft from enjuku on my car. Its been there for about 6 years now I've been happy with it so far.

But as the others have said you can just cut that dust shield off and you'll be good to go. I cut mine before I installed the engine, just about flush with the rear of the transmission. I left just a little more than a flat disc of the shield remaining.

[xdumbxguyx]

take the driveshaft off and smack the dust cover with a hammer a few times and it comes off. Reinstall driveshaft and drive!

[Wookie384]

http://i654.photobucket.com/albums/uu268/johnw14151/2010-10-1695165508.jpg
For now remove that drive shaft and hammer out the dust shield. It should pop off easily. But in the long run I would suggest you get a new driveshaft, OEM or aftermarket. It looks like yours was modified in some way, You can see in your pictures how the bolts look like they're too long, and some nuts are new, and the bushings are all under stress, something doesn't look right with that picture.

It should look like this, the bottom one pictured below:
http://i126.photobucket.com/albums/p112/sxj6151/NICO/IMG_7453.jpg

For future reference:
- All KA24 transmissions are the same length.
- All ABS/Hicas equipped S13's have a slightly shorter driveshaft to accommodate the slightly longer differential.
- To make a non-ABS driveshaft fit with an ABS equipped diff. just pop off the dust shield on the trans.

[Souljahzs13]

Yea, according to the FSM chart it is a manual driveshaft and I just looked at the spare one I have laying around. When removing the driveshaft to knock out, do not forget to put a pan under the rear opening of the tranny. A lot of fluid will start dripping out... I always forget lol

[MyblackS13]

Wookie: I think he'll be good once he gets that shield out of there. I think the dust shield is just compressing the dampener/bushing on the driveshaft.

Good eye on the fasteners, the one that looks too long is actually appears to be missing a nut. So that should definitely be replaced. Otherwise the fasteners should be ok, just as long as they're stock spec, or when in doubt replace with class 12.9 fasteners.

[QuickSpoolSR]

ya i have the nuts off of it. Im going to take the sheild off wednesday and hopefully my problems will be solved. thanks for all the input homies.