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Old 03-30-2002, 12:58 PM   #1
mr2guru
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91 RX7 LSx swap
'09 CC 3.6 4motion

Question STi transmission swap

No not the new 6-speed What about tranplanting a JDM MY00 or MY99 STi tranny into our WRXs...would it be a drop in? or were the axles, center diff, driveshaft, etc... different on the older STi as well? It just seem that they would be a helluva lot cheap than the $6-8k for the new six speed and can handle more power than our WRX tranny. Just a thought...probably a misguided one at that.
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Old 03-30-2002, 01:32 PM   #2
XT6Wagon
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You will need a rear diff, I bet as the ones I've seen are all 4.111 or 4.444

You might look at the GT-B/B4 RSK trannies as they have a wider gear spacing that while it will make the car slightly slower, will also make the car far more comfortable to drive. Most people if they thought about it would give up a tenth in the 1/4 for vastly reduced highway RPM, and less missshifts on the run itself. The Tight RA box requires constant rowing down the strip which makes for a high possiblity of missing a shiftpoint or missing the next gear.
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Old 03-30-2002, 01:33 PM   #3
Ver.III
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Would be a straight drop in except matching the final drive ratio at the rear diff. Most likely it would be a 4.44 . But you would have to confirm that with your supplier.
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