leeroywrx

iTrader: (10)

will my diff from a my95 wrx fit a wrx ra gearbox?

leeroywrx

iTrader: (10)

anyone?

mit

iTrader: (10)

No, you'll need the diff too, if it's a 95RA box. The RA has a 3.9 rear diff, the wrx a 4.1
See here for combinations:The SPDA - Transmission Chart

leeroywrx

iTrader: (10)

thanks for the reply mate.ive seen the chart but to be honest i havent a clue what im looking for wheres the best place to find a diff if i already have a gearbox?

mit

iTrader: (10)

Is it a 95 box? As looking at the chart, there are diferences on some years.

leeroywrx

iTrader: (10)

its an early classic ra i think.not sure if 94/95.the code is ty752vb3ea.

mit

iTrader: (10)

Looking at the chart, thats a 95RA box, so will need the 3.9 rear diff.

leeroywrx

iTrader: (10)

thanks mate any idea where id get a decent diff from?

mit

iTrader: (10)

You could try Api? They've been good for me in the past, he'll be able to confirm what you need too.

leeroywrx

iTrader: (10)

great.ill try him in the morning

banny sti

iTrader: (68)

Only the sti ra gearbox needs the 3.9 diff, afaik the wrx ra runs the same diff as a wrx with diff ratio 4.111.

Banny

mit

iTrader: (10)

My 95RA has the 3.9. Look at the chart above.

leeroywrx

iTrader: (10)

i guess its a tricky question.im even more puzzled now

banny sti

iTrader: (68)

Looks like they gave them the same setup bar the dccd centre on the STi model, my chart also agrees

Manual transmission ratio chart

Banny

mit

iTrader: (10)

Good thing is if and when i blow up the RA box, a jdm 6 speed can use my existing diff/shafts/hubs, which is ace!

leeroywrx

iTrader: (10)

so it looks like it will fit without another diff then

mit

iTrader: (10)

I thought we'd decided you needed another diff, a 3.9?!

leeroywrx

iTrader: (10)

banny said i didnt need one as the gearbox is from a wrx ra?

mit

iTrader: (10)

If you look on banni's and my chart, the TY752VB3EA box fitted to the 95 RA uses a 3.9 diff, yours is the 4.1.

joz8968

iTrader: (13)

Could be a time-wasting and expensive mistake if you fit the wrong rear diff. Your best bet,, as mentioned, is to speak to David at API. He'll defo give you the correct advice - all you'll prob need to do, is give him your 7-digit 'Applied Model' code (it's on the VIN plate, riveted to the passenger front suspension turret)...

mit

iTrader: (10)

Yep, he's very helpfull, theres not a lot he doesn't know about diffs/gearboxes!

leeroywrx

iTrader: (10)

already pmd him

Peanuts

iTrader: (15)

buy a rear diff from a sport, they are 3,9.
Personally I dont see any good reason to fit the wrx RA box, sorry.

mit

iTrader: (10)

i love my RA box, but it'r all down to personal taste.

Peanuts

iTrader: (15)

why do you?
is it the really short ratios that mean you are changing gear constantly or is that you love cruising on the motorway at 5r rpms?

I got rid of my RA box it was just so damned buzzy

joz8968

iTrader: (13)

Er... could it not be the blistering accleration WITH the noise? Gets the ol' adrenalin going, I'll wager?

mit

iTrader: (10)

the cars a toy really, not used on motorways much. I just love the way it pulls in any gear. I admit, it feels quicker than it is!

Underworld

Out of about 20 calls to breakers, ONLY A grade had a 3.9 in stock, and asked over £550 for it..

API however did a rebuild on my old one for a bit less...

get in touch with david and he'll advise you in the right direction

joz8968

iTrader: (13)

Grade A 'crack me up' with their prices.