johnlogie

iTrader: (4)

I have a 99 uk turbo with a knackered gearbox. If I bought the above box which rear diff would i need?

Thanks

Slowboy Racing

Rear diff is 3.545, the box is from a 06 Hawkeye.

Splitpin

According to this animated discusson the 2.5 WRX rear diff is 4.11:

https://www.scoobynet.com/802944-doe...45vg7aa-2.html

John - if you are going to buy the box, the logical way forward re. the rear diff is to get the one that went with the box.

However if you put an 06MY one on, don't forget that you will be dealing with the different front driveshafts and clutch. If it does have a 4.11 final drive you may also find your speedometer reads wrong.

johnlogie

iTrader: (4)

I thought that my99 uk turbo came with the 4.11 diff? I didn't realise about the shafts till I had a good look at the box. This I'll just get a box that's a straight swap and save for a 6speed.
What code box would be a straight swap?
Thanks for the help.

johnlogie

iTrader: (4)

Double post

Arch

iTrader: (59)

The rear diff on these hawkeye boxes is NOT a 3.54 the TY754VN1AA, 2AA, 4AA are all 3.54 but it went to 4.11 with the hawkeye WRX. The speedo drive ratio's are not different just screw your own mechanical drive or sensor for the later classics into the box. These boxes are also much stronger than the previous Blobeye wrx boxes so they are a good upgrade if you dont want to pay for a six speed. I am using the Hawkeye WRX shafts on my Hawkeye 6 speed and recently picked up a spare shaft fo £50.

Slowboy Racing

Correction, there has been some discussion on this as i see and it does run the 4.11 rear diff not the 3.545 earlier diff.

jeffwrx

iTrader: (50)

I am thinking of buying a TY754VG7AAbox aswell , but will this fit a classic ,(95wrx) so already has the 4.11 rear diff ,just would need front driveshafts? but what happens about the clutch as mine is a pull clutch and this box a push type clutch ? thanks