I'm swapping out my n/a for a TII motor. I have the TII trans but need to get a custom driveshaft to bolt on to my n/a diff. If I get a TII driveshaft can I just tell a shop to switch the rear yolk?

 

Sure. I had a shop make a custom shaft out of a turbo shaft and a NA connector. It works perfect with my NA rear end. OR you can take a NA automatic trans shaft and make or a buy a spacer for the rear end. The auto shaft has a turbo yolk and a NA rear end connector already BUT the shaft is about one inch too short... so You either CAD a spacer, fabricate a spacer or go ghetto and find a large enough washer to fit around the main rear end bolt insert on the shaft and find the same length spacers to put around the grade 6+ bolts you would need to buy. Above all you can actually buy the Turbo to NA rear end drive shaft from Mazdatrix for about 250 bucks. I have used all those methods above with no problems what so ever.

 

Thanks for the info!!

 

Well explained indeed...good stuff.

 

http://www.mazdatrix.com/g9.htm
http://www.mazdatrix.com/getprice.asp?partnum=2691-799

 

If I can get a deal on a T2 driveshaft I'm just going to take it to a driveshaft shop. I'm running low on cash!! this rebuild/swap is making me poor!

 

I feel your pain on the cash part man, I got the engine and everything then there were the little things that I didn't know I would need like the drive shaft, as the cash ran low I ended up becoming friends with the CAD engineers and the machine shops to go cheap and effective thats how I figured all this out. Good luck on your 7 and let me know if you have anymore questions

 

Thanx appreciate your help!

 

The TII shaft i bought on ebay was drilled out a little to mount right to my n/a diff. Lucky surprise for me since my lsd came in broken...

 

Lucky

 

I know you already probably know this but since no one has said it yet, i hope you know that na rear doesn't hold much more power than the tranny. IN my care i've broken 2 rears and 3 trannys. not knockin what your doing just making sure you know when you can afford it a tii rear would be a really smart upgrade, not to mention thier lsd's are better

 

I dont plan on going over 300hp.

 

I'm putting almost 400HP through it, and an NA transmission.

But I agree, the TII parts are the better option.

My saving grace is that my diff is open. Once I get an LSD unit in there things may change.

 

My mechanic told me he thought my diff broke because it was an open and was sending so much power to one wheel. Aaron if i remember right you don't really do much drag racing on those parts do you? and just to clear things up i'm not tryin to start any thing just wondering what kind of abuse your NA prts have taken

 

The local 1/4 mile is about 20 minutes from my front door.

http://www.youtube.com/watch?v=woj7628Z0ag
http://www.youtube.com/watch?v=UOPXWf7_LQ8

 

well aaron you have more self control than me lil last time i went to the track i was pulling 2.1 60ft and that was before many of my mods. I launch hard alot so that probably why your NA drivetrain has lasted you so much longer. If that were my car i'm sure i'd have grenaded something by now lol. great work tho i forgot you were bridgeported i love it