After the last 3 weekends of preparing my NA diff conversion on my TT which entailed removing my TT diff/subframe etc from the car and repainting the NA subframe. Also had to transfer the poly bushes for the diff but decided to retain the OEM main subframe bushes in favour of cutting dowm the noise transmitted into the cabin. I replaced the diff side and pinion seals while it was out and gave the diff a coat of black paint and also had a new centre bearing fitted to the prop shaft and a balance.

With the TT diff and I always found the car to have very "long" legs, perhaps due to 19" alloys and the lag on my GT675RS turbos found it to be a bit slow on the power delivery.

Finally today it was all fitted and ready for its first test run, don't have any specs as far as revs/speed etc but all I can say is the car is transformed, it pulls like a steam train in each gear and feels like this gearing is what it should always have had. It does not feel like the revs are too high or undergeared but I will reserve that after a test on the freeway drive after wheel alignment is done next week. At 0.8bar boost traction is lost in the first 2 gears so going to have to set up the Apexi boost control feature for each gear when I up boost to 1.2bar.

This is a good mod.

I have had mine on the motorway and its only a few hundred rpm different so literally nothing,

But the car feels better for no hicas its also made the car a bit lighter,

The na rear end also to me makes it feel like your in a much smaller lighter car, it just pulls.

I use mine on uk roads so its not like im going to running out of top end often and it will still it 150mph with more that im pretty sure of lol...

But I use the acceleration every time I drive it so acceleration I'd say is more important...

the na diff sound good I did think about it but am wanting to run near the 600bhp mark the na diff look so small next to a tt diff I put me off. but am sure would be great on a stock car or just running 14psi on stock turbos

Im sure its the same diff thats in skylines etc and I reckon it would be ok,

Na rear end less power needed to go faster too lol...

I would have used the na rear end if I wasn't going got big power

I cant wait to drive mine home 150 miles from marks place to my home in norwich when i get of work.

I have had mine on the motorway and its only a few hundred rpm different so literally nothing,

But the car feels better for no hicas its also made the car a bit lighter,

The na rear end also to me makes it feel like your in a much smaller lighter car, it just pulls.

I use mine on uk roads so its not like im going to running out of top end often and it will still it 150mph with more that im pretty sure of lol...

But I use the acceleration every time I drive it so acceleration I'd say is more important...

 

Yes I agree with you..... here in South Africa we have a speed limit of 120km/h and although many do break the speed limit occasionally. I am not one for top end speeds and favour the zero to speed limit type run. I also hear the NA diff is the same as some of the sylines as far as the type (R200). I am sure the diff has limitations with high power motors but I am sure if hard launches with sticky tyres are kept to a minimun it should be good and I am sure I will find out one way or another.

look at this its for the tt diff gear ratio change to 4.10 and you can keep your tt rear end and diff

http://specialtyz.com/shop/default/300zx/leader-gears-4-10-ratio-z32.html

look at this its for the tt diff gear ratio change to 4.10 and you can keep your tt rear end and diff

http://specialtyz.com/shop/default/300zx/leader-gears-4-10-ratio-z32.html

 

But at that exspence you can fit the whole na rear end thus getting rid of all the hicas.that was the main reasin for doing mine. The gearing was an added bonus for free.

but would the tt diff be stronger

I would have thought so. But as im not running into the half k bhp and i dont drop the clutch at every traffic light nor am i running up the strip everyweekend at north weld so i think.ill be very safe. And there good and strong enouth .not herd any conversion going wrong yet.

Unless your running drag tires I doubt u will break it...

I would have thought the rears would just spin up,

I looked about on google and they reckon at worse half shaft would break,

What are u going to be doing with the car road and track or 1/4mile

Unless your running drag tires I doubt u will break it...

I would have thought the rears would just spin up,

I looked about on google and they reckon at worse half shaft would break,

What are u going to be doing with the car road and track or 1/4mile

 

Exactly my point.