turbo2 drive shaft problem

[townidiot]

im in the middle of putting a s5 turbo motor into my s4 turbo rx7. and today i tried to install the drive shaft, but for some reason its to long.(its a s4 drive shaft) so my question is do i have to get a s5 drive shaft or do i have to cut the s4 to fit?????

-thanks

[djmtsu]

If you are using the S5 trans, you have to use the S5 driveshaft.

Basically, it is isn't the engine, its the drivetrain that needs to stay in the family (S4 or S5) trans->driveshaft->differential

From what I have read, you cannot mix and match pieces.

[townidiot]

so the differential also has to be s5

[djmtsu]

That is the information I got long ago. From what I understand, the only thing that is usable in the drivetrain between S4 and S5 TII's are the axle shafts.

I would hope someone else can chime in.

[EJayCe996]

I'll go verify the diff right now, I have an S5 TII Trans, driveshaft,and an S4 TII rear end.

*the holes line up, but i don't have any spare bolts on hand

[Flooder]

That's weird, I've never heard that before.

[Phoenix7]

Um, your forum name makes me want to state the obvious so don't be offended:

Your putting the transmission end first, right?

Now, the automatics ALL use the same DS. The rest are series specific with their pumpkins. How much longer is it?

[Flooder]

Yah, you have to put the transmission end of the driveshaft in first then bolt it up to the differential.

[townidiot]

yes i put the transmission end in first and its about 3 inches long.i messured it and i think it was 41" how long is the s5 if anyone would know...

[Max777]

Are you sure that you put the shaft all the way in, and that the trans or the diff is REALLY from the turbo model?

I have never heard that the Trubo stuff has to be series specific either, and I trolled the evil forum for like 2 years before I got my fc. :D

I guesss you really DO learn something new every day!

[townidiot]

yep i made sure i put it all the way in.and yes they are both turbo trans and diff.

[Flooder]

Just doesnt make sene to me. I dont see how or why it would be different. You probably have an NA rear end.

[RETed]

Turbo doesn't matter - they should all swap.
This is not some funky JDM automatic FC turbo driveshaft, or something weird like that, right?

The rear diff have different bolt patterns for turbo versus non-turbo.
Tried checking the bolt pattern on the rear diff side first?

Lastly...
Is the engine + trans mounted and bolted into the car already???


-Ted

[townidiot]

yes its a turbo rear,yes the bolt pattern matches, it has a lsd if that would do anything, this used to be my friends car he gave me the drive shaft with it. that he used with his s4 turbo motor,and yes the motor and tranny are both bolted in.

[townidiot]

i bought the motor from a importer, would there be a diference with how far the tranny sits back when it comes to jdm to usdm????