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Old 02 Sep 2010, 05:26 PM   #1 (permalink)
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wrx gearbox

hey ppl
can any one tell me if the gearbox numbers have to be the same when changing the gear box,my gearbox has gone on my93 wrx and i am looking into getting another and i need to know if i need the exact gearbox number as my own ,and also y is this if so as i dont have a clue thanks people:
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Old 02 Sep 2010, 05:50 PM   #2 (permalink)
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Re: wrx gearbox

gearbox number will be on chassis plate in engine bay and also on the top of the box near the starter motor ...
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Old 02 Sep 2010, 06:01 PM   #3 (permalink)
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Re: wrx gearbox

thanks for the reply mate,i have found the number but i need to know weather when i put a new gearbox in does it have to be the same number?
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Old 02 Sep 2010, 06:04 PM   #4 (permalink)
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Re: wrx gearbox

yup,or as close to,reason being,the wrong box will wind up the dif and blow it apart
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Old 02 Sep 2010, 07:45 PM   #5 (permalink)
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Re: wrx gearbox

You don't need the exact same box, but it must have the same final drive for the reasons above; will knacker your diff. If you get a box with a different final drive you'll need the diff as well.
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Old 06 Sep 2010, 08:33 PM   #6 (permalink)
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Re: wrx gearbox

so as long as the final drive is the same the gearbox will be ok?
or does the 1st,2nd,3rd,4th and 5th gear ratio need to be the same?
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Old 06 Sep 2010, 09:38 PM   #7 (permalink)
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Re: wrx gearbox

That's right final drive is the important bit. You could get another box and get the matching diff with it if you're having trouble finding one
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