How do they compare to the other STI boxs ??

I need to give my legacy a bit more acceleration

 

oh well I have bought the box and diff anyway

 

They are the same as STI5
See.....
http://www.iwoc.co.uk/impspec2.html

You will probably need to swap the rear diff flange for the propshaft, and re-use your legacy one. The nut will be very tight, and use a puller to remove the flange, and push it back on gently, and re-tighten. Dont hammer the flange back on.
You may also need new rear driveshafts, as I the Plate type LSD uses different driveshafts from the normal VC unit. Impreza shafts will fit a legacy, altho the propshaft is different.

 

Hmmm perhaps I will obtain the drive shafts as well then !!

thanks for the info !

 

and I did, bought the gearbox & diff & drive shafts !!!

 

Just thinking, any UK legacy rear shafts are different from impreza. The Uk legacy shafts fit in using the same was as the front diff, where a roll pin is used to retain them to a stub sticking out from the diff.
Impreza shafts slide into the diff unit.
Then there are the impreza rear shafts for a VC diff, and different ones for a Plate type LSD
Jap legacy RS shafts seem to be the same as impreza ones.
Since you got all the bits anyway, just a little bit of useles info.
Dont forget to be gentle removing/replacing the rear diff drive flange.

 

Ta for the info. am glad that I paid the extra and bought the drive shafts

any idea what the "TY" code should be on a P1 gearbox ?

 

From memory, I think it was something like TY754--AAA
I cant remember the bit in the middle, but its prob something like VB or VN

 

if its VB I am a happy man