OEM 4.7fd interchangable?

[e240]

So your saying i cant use OEM 4.7fd unless i use the lsd from it as well other parts?

You can use them in other B18Cs, just not the B16A

[Mugen_R]

So i can use the 4.fd on a b18c2 GB non LSD without using the 98 spec lsd?

Confused now cos u edit ur post

[e240]

So i can use the 4.fd on a b18c2 GB non LSD without using the 98 spec lsd?

Confused now cos u edit ur post

Apologies - I posted some incorrect info regarding the LSD sizes and was correcting it.

Basically, an OEM 4.7 FD comes off a '98 spec type R. While you can fit the 4.7 ('98 B18C R) onto into any B18C or B16B, it is not straight forward because the '98 spec uses a slightly different fitment 1st gear. You need will need the '98 Type R spec 1st gear, countershaft etc (as Ben said).

It may be simpler to just purchase a Final Drive to suit your current diff.
and if you're going through all that trouble, you should put in the LSD as well.

Finally, the diff size of a B18C/B16B is different from a B16A, so the FDs are not interchangeable.

Hope that clarifies.

[Mugen_R]

thanks mate