Prop shaft question for ZF8 Conversion

[Supraman1511]

Does anyone know if the front section of the NA Auto prop is the same as the TT Auto prop?

The ZF8 kit is designed for the TT Auto prop which seems impossible to find (and I assume a big case diff)

I am wondering if the only difference between the 2 auto props is the length (to reach the different diff case sizes) and the size of flange that connects to the donut? small flange on the NA small diff and big flange on the TT big diff

So in theory the ZF8 coupler could also bolt straight on to the NA prop with small diff? Of course the 4.0xx diff ratio of the NA Auto would be terrible for the ZF8 

BUT

 I have picked up a 2001 LS430 diff which is 3.2xx just like the 6spd, this is a small case diff with big flange

SO...

Can I switch the diff flange of the LS diff to use the small flange from my NA A01a diff and be good to go?

(I'm also building a GE VVTi and boosting it to around 600bhp to go along with this)

Edited October 23, 2024 by Supraman1511 (see edit history)

[AC93]

Annoying the LS diff flange has a different PCD to the Supra so you can't just swap the flange because the prop won't bolt up.

I found out the hard way 

So you need to take the 3.2 gear ring out the LS diff and put it in the Supra casing 

[Supraman1511]

Thanks  

I thought you could just switch the diff flange? So if I took the A01a diff flange "small" PCD and put it in the LS diff, then it would match the prop? 

Either way you've given me an option thanks  if I can use the 3.2 gear ring with the A01a diff and NA Auto prop with the ZF8 coupler, then that's perfect 

 

[AC93]

Ah yes you could do that, I assume you're adding a LSD core as well to the Lexus diff?

[bluesonic94]

No

[Supraman1511]

Yeah probably OS Giken or Cusco 1.5 if anyone has any advice on that?

 

[AC93]

On 10/25/2024 at 12:30 PM, Supraman1511 said:

Yeah probably OS Giken or Cusco 1.5 if anyone has any advice on that?

 

OS Giken