TC3 one way diff, or not?

[Chrislong]

Hi Guys,
Just had a customer on, he bought a AS1728 NTC3 one way diff from us for his TC3.

Apparently the diff is too wide, it won't fit - driveshafts too long. I have spoken to CML and this is the only diff that they do now, and that it should fit.

There is the AS3978 one way diff, listed for the TC3 specific, but it is discontinued.

Just wondering, has this customer got the wrong diff. Im trying to help him but so far all I can see is he has the right diff and I can't figure out why it isn't fitting his car.

Thanks
Chris

[Southwell]

I was always under the impression they were a direct fit.

[Chrislong]

Me too, and CML confirmed that. But id like to help the customer and find out for sure, and if there is anything he can do, or buy, to make it fit.

I got a sneaky feeling 1728 is for NTC3 and B44, but not TC3, and that 3978 for the TC3 has been discontinued - and with the TC3 being old the newer 1728 everyone has just presumed it'll fit.... But I dunno... id rather give the customer some info I am not making presumptions about...

[millzy]

I cant see them doing two diffrent diffs this is AE who use b2 diff parts in the b4

im sure the nitro tc3 and the tc3 both have the same size diff

[Chrislong]

Cheers Chris, pretty much what I thought too and what I said. I explained that the tag on the packet states NTC3 simply because this car was made before the others, and the others use the same part so to reduce number of different parts AE have to manufacture..... which simplifies things somewhat.

So how come the diff doesn't fit his car??? bizarre.

[timmy121]

the ntc3 one way has longer outdrive compaired to the tc3