2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

TII diff on NA ?

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Old Mar 2, 2003 | 02:53 AM
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TII diff on NA ?

I would like to use my spare TII differential on NA

Could i use it with NA tranny and NA wheel hubs ? 5 bolt.

I imagine only things necessary to swap will be

- TII driveshaft
- TII diff
- TII half-shafts...

??
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Old Mar 2, 2003 | 03:24 AM
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I don't know, but I've heard that the TII driveshaft is a different lenth, and that it's impossible to combine an N/A tranny with a tII diff and vice versa. Again, never tried it myself, so I don't know
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Old Mar 2, 2003 | 05:12 AM
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It's not *impossible* It just requires a custom driveshaft, or you to bust out the drill and make the NA flange bolt to the TII rear-end flange (using the NA driveshaft) Other than that, just the TII rear end and halfshafts.
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Old Mar 2, 2003 | 08:42 AM
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You need to either have a custom driveshaft made (with a TII flange to mate up to the diff) or swap on the TII tranny, which also requires the TII starter, clutch, etc.
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Old Mar 2, 2003 | 12:47 PM
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damn, i have all parts i need but i wanted to keep NA tranny since its in very good shape

diff on NA is non-LSD one and i would like to have there my TII LSD one
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Old Mar 12, 2003 | 08:55 PM
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p.o.c. piece of cake
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Old Mar 12, 2003 | 10:33 PM
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get one off a GXL, then you should have no problem matching up tranny to diff...check though to make sure it has LSD first...some don't!
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Old Mar 12, 2003 | 10:40 PM
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I used a TII rear driveshaft peice mated to a N/A driveshaft . It cost me 45 $'s at the driveshaft shop .

Then just use the TII Diff and half shafts . You might wanna try getting MazdaTrix diff mounts too . Chances are your old ones will be crap when you get to it . 180 $'s well spent .
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Old Mar 13, 2003 | 01:48 AM
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wrong answers all the way

i don`t want to modify what i have here (i might need spare TII driveshaft for other TII, as well diffs.....)

basically i can`t use it without modifying so i will have to leave it like it its
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Old Mar 13, 2003 | 02:54 AM
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I have a TII rear in my NA. You need the half shafts. No way around it. BUT dont listen to anyone about the driveshaft. I took the shaft out and drilled the flange on the diff. The bolts wont fit perfectly straght but even at an angle they hold up well. I take the car to driftsession and really beat on it. It hasnt failed. No point on spending money on the driveshaft. If you have the money to, you should do the full swap. I have everything except the clutch and flywheel.
Wow this conversion can get expensive!
If you want to do it cheap, do it my way. The cheap way!
If you make enough power to make the bolts a weak spot I wouldnt count on your tranny lasting much longer.
Sorry about the long response.
Sky
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Old Mar 13, 2003 | 08:57 AM
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I have all parts to do full swap but i don`t want use them on this NA. And i don`t want to drill flange on diff. And i don`t want to spend money on new driveshaft. So there is no way. non-LSD will stay there....
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Old Mar 19, 2003 | 12:21 PM
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if you drill the flange 90 degrees off the turbo pattern you can still use the TII shaft later.
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Old Mar 19, 2003 | 02:01 PM
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what about swapping internals of diffs?
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Old Mar 20, 2003 | 05:50 AM
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you really have both? If you look and then lift the two you will know they dont fit eachother. The TII is conciderable heavier. It is also bigger. THe NA flange will not fit the TII diff either.
sky
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Old Mar 20, 2003 | 06:49 AM
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i have few of each but have not compared them yet...just thinking options....
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Old Mar 23, 2003 | 06:21 PM
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My friend Kyle (k86rx7) is planning on putting a TII drive train on his N/A, but I didn't think about the tranny issue. I hope they connect.
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