My 03 blob wrx box (vn4aa) has gone to gearbox heaven. I have found a classic TY754vn1aa and believe it to be the same ratio?
Can anyone please help me on the matter? Much much googling and I can't find the definitive answer! Thanks

 

arnt blob boxes gears slightly wider/stronger then bug/classics.. so you will be fitting a weaker box? i was looking for what codes had these uprated boxes but couldnt find the answer

 

Weaker and working is better than goosed and stood up lol, both are ty754's, it's not an old TY752.
Yeah I've checked a lot of charts and I'm struggling. Api David might know

 

Try and get hold of a 7aa from a Hawk if you can.

 

Whys that? I've actually got one with a stripped third gear, got it for free. It's the wrong clutch type and the wrong front driveshaft type though so won't fit.

 

They're supposed to be stronger.

 

But then the clutch I've just bought would be useless, I'd have to buy a new clutch and the gearbox is £400 dearer.
I would rather just put a gearbox in, does no one know what final drive, rear diff and drop gear ratio either of those boxes have? 3.9, 3.545, 1.1?

 

Got one, looks like this inside;

 

Looks like all VN boxes are the same ratio, with only driveshafts and driveshaft oil seals being the difference.
https://www.scoobynet.com/showthread.php?t=730343&styleid=26

 

how are wrx cogs getting completly striped like that? is the wrx box just plain not capable of handling 200+hp 4wd or are people taking the **** with them

 

All uk Impreza boxes are 3.54 ratio rear diffs. The TY754VN1AA box will be fine with your own diff.

 

US Impreza WRX MY04 TY754VV4AA 3.454 1.947 1.366 0.972 0.738

UK/Europe Impreza Turbo 2000 / GT MY99 TY754VN1AA 3.454 1.947 1.366 0.972 0.738


same gear ratios also

 

Smashing thanks

 

Was given the box for free, came from a car running 460bhp

 

I suppose if you are unsure of the ratio of the box you can pop it in gear, turn the input shaft, watch front drive shaft do one full turn and count how many turns the prop does.