I would like to gather some info on broken 5spd WRX /STi gearboxes to help us all in making the correct upgrade/repair choice.

As some of you know Subaru Oz changed the ratios and gears in the MY02+ WRX to provide improved acceleration and reliability. The tooth pitch of gears 1st-3rd changed and also the face to face width of gears 1st-3rd (increase by 1mm) to match that of the 5spd STi R/RA's. A new 4.444 final drive ratio also helped.

No discussion threads pls. Its a straight survey.

So please provide:

1) MY?? year of WRX/STi and Km:
2) Upgraded Clutch, if so what brand and type (organic,button etc):
3) Do you compete in MC/Drags ?:
4) What gears/selector forks broke ?:
5) What did you upgrade to and cost, where work done ?:
6) Oil Used ?

Thanks .
J

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke

MY01 wrx 107,xxxkms
Excedy Sports organic
Drags a little bit, more so agressive 1-2nd changes on the street
Stripped 2nd gear and stripped the input shaft gear, too hard 1-2 change..
replaced broken parts with new items, $1600. ASG

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K.E.R.S!!!1

1) MY99 60000km
2) Slightly upgraded clutch (~1000kg...original is appprox 750kg)
3) Do you compete in MC/Drags : Yes over 400 launches before it broke
4) What gears/selector forks broke : 2nd gear stripped clean both shafts
5) What did you upgrade to and cost, where work done : Ivan Albins 1-5 helical/custom ratios/ Cost= (Less than PPG 1-5) circa $6k. All work done by Tony Flood
6) Oil Used: ref Tony Flood (MobilXXXSyn) as no longer using Redline Shockproof

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Speak to Shane @ SMC Tyres, Unit 6/385 Sevenoaks St Beckenham WA 6107. Mobile 0413 128 087. Tell him Maddog sent you!

Good stuff !!

6) Oil Used......... is a good point Morgan

Keep em coming...

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke

1)MY00 WRX 100,000
2)Jim Berry not sure what clutch
3)no but gets cained on street though lol
4)smashed 3rd
5)cost me 2,800 somthing work done by Tony Flood, 04 gearbox 4.44 ratios
6)whatever tony used is still in there

Bumping this to the top as a few boxes have gone to gearbox heaven lately.....

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"You can turn your back on a person, but, never turn your back on a drug. Especially when it's waving a razor-sharp hunting knife in your eye." - Raoul Duke

1) MY98 WRX, ~125,000kms
2) Brass button clutch
3) Nope
4) Snapped the output shaft between 2nd and 3rd
5) Shaft replaced with a PPG item, around $2800 including labour
6) Fuchs GearSyn or something like that

I think my situation occured because the box was upgraded with PPG 1-2 straight cut synchro gears. Given they are ridiculously strong, the force just shifted to the next weakest point, the shaft. That being said, RMS said they have never seen it happen before.

my old car owned by lorry above, i was the one that broke the gearbox in it changing to hard from 1st to second

this is my old car when i broke the box

MY98 WRX
112,000KM'S
Exedy lightned brass button clutch
chipped tooth on 2nd gear
no motorsport racing at the time
upgraded to 1st-2nd PPG Straight cut gearset
cost $4k work done by RMS
Oil Used: Fusch

1) my98 sti box 70 000km
2) heavy
3) 3 mc days, copious drag use
4) went for third, clutch out early, smashed 2nd and 3rd
5) my96 jdm box went in instead
6) fuchs gearbox oil

1) MY96 box, 130 000km
2) same clutch as above
3) mc days, long track, copious drag use
4) 3rd gear under heavy acceleration
5) m95 jdm liberty box replaced it
6) fuchs oil was in it

1) MY95 jdm liberty box unknown kms
2) stock clutch face, upgraded pressure plate
3) copious drag use
4) pulled up at lights, heard a rattle... thought it was thrust bearing, noise got worse, began popping out 2nd gear, finally stripped 2nd and smashed a hole in front diff
5) my97 box
6) redline oil.... its shit!

currently using castrol oil

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[SIGPIC][/SIGPIC]

1) MY99 WRX 160,000
2) Upgraded, I think STi equiv or something like that
3) Street light warrior on the odd occasion, but not really
4) Broke the 1-2 cluster or something, basically no longer had either gears.
5) JDM 2003 WRX