1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

2nd gen transmission in 1st gen

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Old Oct 11, 2005 | 09:03 AM
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2nd gen transmission in 1st gen

If you are going to put a 2nd gen standard in, you have to put the 1st gen tail shaft on to make the shifter line up. According to the directions indicated in the archive, one of the shifter rods needs to be drilled 3cm up so that you can shift into 3rd. Which rod is this? The 2nd gen rod or the 1st gen rod?
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Old Oct 11, 2005 | 10:29 AM
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well, since ur modding a 2nd gen tranny's shifter position to fit a 1st gen, wouldn't it be safe to say they're talking about the 2nd gens shifter rod? i would think so. it's the same rod i shortened and redrilled and tapped to put an '83 tranny into my rx3 to retain the original shifter position.
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Old Oct 11, 2005 | 03:04 PM
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The 2nd gen shifter rod needs to be cut and drilled about an inch short.
Then you also have to shorten the tube that the selector rod runs through,pretty easy.
After that,the 2st gen shifter tower will bolt right up.
Then its just a matter of a little crossmember/mount massaging and having a driveshaft made up(if you use a TII box)
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Old Oct 11, 2005 | 03:14 PM
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If you're not really concerned about shifter position, you can just leave the tranny as is and cut a notch in your transmission tunnel. I had to trim back about 1 inch. No biggie.
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Old Oct 11, 2005 | 03:15 PM
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From: Socal
Originally Posted by rxtasy3
well, since ur modding a 2nd gen tranny's shifter position to fit a 1st gen, wouldn't it be safe to say they're talking about the 2nd gens shifter rod? i would think so. it's the same rod i shortened and redrilled and tapped to put an '83 tranny into my rx3 to retain the original shifter position.

which tailshaft did you use as in what year tranny

Last edited by Siraniko; Oct 11, 2005 at 03:17 PM.
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Old Oct 11, 2005 | 04:10 PM
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Originally Posted by ducktape
If you're not really concerned about shifter position, you can just leave the tranny as is and cut a notch in your transmission tunnel. I had to trim back about 1 inch. No biggie.
Do you have a picture that you could show us?
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Old Oct 11, 2005 | 04:44 PM
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I have a problem with the custom driveshaft thing. If you're using the 1st gen tailshaft to get the shifter to the same spot, the distance from the tailshaft to the diff isn't changed at all. So besides strength, what's the point in a custom length driveshaft? You're also retaining the exisiting output shaft splines, and the pinion isn't being changed either.
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Old Oct 11, 2005 | 05:20 PM
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From: Rohnert Park CA
The only 1st gen part you use is the shifter tower,not the tailcone.
For an N/A FC trans you might not have to mod the driveshaft.It depends on if the 2nd gen N/A trans is longer overall then the FB trans.

Last edited by steve84GS TII; Oct 11, 2005 at 05:27 PM.
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Old Oct 12, 2005 | 12:08 PM
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Originally Posted by Rotor13B
Do you have a picture that you could show us?
Not offhand. I'll try to take one tonight.
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