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Old May 26, 2014 | 09:11 PM
  #1  
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Confusion about drivetrain components

Hi everyone,

I got what it seem to be an 86 N/A GXL, it got the 4 pots brakes, power windows, cruise control, electronic ajustable suspension and sunroof (well and a lot of other stuff I just read in the 2nd gen option and standard feature's thread). Well, it came with an LSD diff. too. Also VIN number state that it's N/A.

When I got the car there was no engine in it but came with a 91 TII engine + harness + ECU + turbo transmission. Let's fast forward all the hassle this swap was...it's done and is now running good on Rtek 1.5 N374 ECU.

Where getting closer to the question now. I did'nt have any driveshaft and bought a turbo one and was ready to do the necessary modification to fit it. Went back home to try it and as excepted yoke did fit in perfectly but I was surprised that it fit in lenght and with the bolt pattern of the diff. too.

So the questions: Is it normal ? Was'nt there supposed to be an issue with lenght or something ? Is it possible that the rear end is turbo swapped already ? I'm I missing something here ?

Thanks for your answers !
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Old May 26, 2014 | 10:09 PM
  #2  
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Yes it is possible they did the T2 swap on it already if you say it came with a LSD diff install it's T2.
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Old May 26, 2014 | 10:36 PM
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Check the rear end. You most likely still have the N/A GXL rear end. ( yeas these were all LSD for S4 )

Your options are:

Buy hybrid driveshaft ( T2 transmission to N/A rear end )
Swap N/A transmission/flywheel /clutch and use N/A drive line ( least recommended )
Swap rear end to T2 ( you need pumpink and axels. ( All North american T2 pumkins are LSD, if shopping at import shop, be aware they offered non LSD T2 rear ends abroad ) .




Originally Posted by ^Zircon248
Hi everyone,

I got what it seem to be an 86 N/A GXL, it got the 4 pots brakes, power windows, cruise control, electronic ajustable suspension and sunroof (well and a lot of other stuff I just read in the 2nd gen option and standard feature's thread). Well, it came with an LSD diff. too. Also VIN number state that it's N/A.

When I got the car there was no engine in it but came with a 91 TII engine + harness + ECU + turbo transmission. Let's fast forward all the hassle this swap was...it's done and is now running good on Rtek 1.5 N374 ECU.

Where getting closer to the question now. I did'nt have any driveshaft and bought a turbo one and was ready to do the necessary modification to fit it. Went back home to try it and as excepted yoke did fit in perfectly but I was surprised that it fit in lenght and with the bolt pattern of the diff. too.

So the questions: Is it normal ? Was'nt there supposed to be an issue with lenght or something ? Is it possible that the rear end is turbo swapped already ? I'm I missing something here ?

Thanks for your answers !
Reply
Old May 26, 2014 | 11:13 PM
  #4  
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If you had the N/A LSD then it would still have a smaller bolt pattern on the diff flange than a TII diff would.
That is why guys like to grab a TII driveshaft and oval the holes.

If you did not have to do that, then you must have a TII Diff.,..and you can tell if you do by counting the Ribs on the rear of the Diff case at the Filler plug..there are 11 rubs.
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Old May 27, 2014 | 10:23 AM
  #5  
^Zircon248's Avatar
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All right ! Thanks I'll go check that today !
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Old May 27, 2014 | 01:58 PM
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I meant RIBS..not Rubs..lol.
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