Drive Shafts - NoPistons -Mazda Rx7 & Rx8 Rotary Forum
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2nd Generation Specific 1986-1992 Discussion

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Old 01-11-2003, 02:32 PM   #1  
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question about drive shafts....

are driveshafts from any t2 from any NA for a second gen the same? please reply back asap.



im leaning towards getting an 88t2 transmission.. i need to know if there is a difference between a t2 drive shaft to an NA one for any second gens.
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Old 01-11-2003, 03:04 PM   #2  
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The drive shafts are different. The NA drive shaft will not fit the bigger TII transmission nose. Your best bet would be to replace the whole drivetrain while your at it. Not as difficult as it sounds either way you'll need the turbo driveshaft. Also the Turbo drive shaft will not mate up to the NA differential without modification. If your interested in the complete swap I have a S5 turbo diff. I'd be willing to sell.
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Old 01-11-2003, 06:59 PM   #3  
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The NA and T2 5spd driveshafts are different diameters and the T2s have larger flanges for the rear end. The auto driveshafts are shorter then a 5spd as well. You can use an NA driveshaft on a T2 tranny and rear end, but you'll need to order the flanges and have them welded on...which isn't as strong and if you plan on big HP, its not a good idea. Something I tried while doing my project was redrilling holes in the NA driveshafts flange, this works and I drove the car for about 1/2 mile like this but its to risky as you only have less then 1/2" of metal surrounding the holes in the flange.
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The NA drive shaft will not fit the bigger TII transmission nose.


Oh, and an NA driveshaft DOES fit the t2 tranny nose, its the flange for the rear end that wont work.
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Old 01-11-2003, 09:05 PM   #4  
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thanks for the great responses people. you guys helped me a lot!

i know i have been asking to many questions lately. I am in the process of building my 10ae from scratch. so what do you guys suggest on how i should have my tranny setup? should i just go ahead and do the s4 t2 tranny setup with the matching driveshaft or go with s5 t2 tranny.. im only concerned with compatibility, i dont want to run into problems....



gxlturbo, you said something about selling the s5 differential. correct me if im wrong, are you selling the s5 tranny , driveshaft and the rear end? let me know if im wrong. and also if this is what you meant. will these basically bolt up to an s4 engine without having problems/ welding stuff around?
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Old 01-11-2003, 09:39 PM   #5  
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He means the rear pumpkin which is just the shell and ring&pinion...it's probably 4.1 rear end. The best thing for you to do would be go all T2 driveline, its the most reliable and strongest setup. All T2 driveshafts & rear ends are the same so you can mix&match. Use a T2 tranny, driveshaft, rear end, and axles...and you'll be good to go. But if you have a 10AE you should already have the t2 driveline,lol...the s4 & s5 turbo trannies are the same as far as i know...
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Old 01-11-2003, 09:44 PM   #6  
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The LSD is diff. between S4 and S5. From what I've heard, the S4 is better.

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In the '86-88 L.S.D. equipped models, Mazda used a standard 2-way mechanical L.S.D. and then switched to a viscous-style differential for the '89-91 L.S.D. equipped models. Viscous utilizes wheel speed input more than torque to sense loss in traction and is slightly slower to react which makes it more predictable for your average driver. It also doesn't require any special additives in the gear oil which made maintenance issues easier as well.
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