GXL diff is different than a t2 diff i believe.

I have an extra torsen I coulkd sell you. Asking $300 obo

yeah, the TII diff won't bolt to the n/a driveshaft without modifications.

Apex13b, you also went from a 3.9 to a 4.3, and that's a big difference. 4.1 to 4.3 is much less of a difference.

I beleive all S5 verts were 4.1 final drive, regardless of auto or manual. The 88 vert had the 3.909 final drive ratio.