Overbear

http://www.ebay.com/itm/SUBARU-IMPREZA-WRX-STI-TYPE-R-RA-CLASSIC-5-SPEED-DCCD-GEARBOX-TY754VB1CA-JDM-/121294381072?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1c3db56010

why, when I don't have the liquid assets does one have to come on the market, its even got the right ratio for my FXT.

joltdudeuc

iTrader: (6)

Way too much $ for DCCD.

Prettym1k3

iTrader: (5)

How much stronger, really, are the 5 speed STI gear boxes than our 2004/2005 FXT 5 speeds? I was under the impression you don't REALLY get to a place where you get strength until you get into the 6 speed transmissions.

Overbear

Add blast plates, Cryo the gears and input shaft, and it can handle 600hp no problem.

But what I want is the DCCD on a 5MT

subysteez

iTrader: (3)

Offer him about tree fiddy?

Scoobywax

iTrader: (18)

lol

joltdudeuc

iTrader: (6)

A little wider, little bit more metal in them overall

FAQ: Comparison of Subaru Gear Sets, WRX, Legacy GT, STI RA, and more...

Gancherov

iTrader: (13)

They aren't any different in case design so the same weaknesses exist. The gear ratios are lower so there is proportionally less shock-loading on shifts but there is still a high risk of shredding the gears with extra power. I don't know what overbear is smoking over there but I've never seen a 5 speed mated to a 600hp lump. It's generally accepted that anything much over 300hp and you're gonna have a bad time.

04GG

iTrader: (33)

A lot yes, but 600, not so sure. There's a dude I bought some parts off from here and he had a peanut eye running a RA box with 592whp and the trans was the first thing to expire (on the track). He doesn't seem like the type to abuse his stuff either. Cryo or not, that's really pushing it on these boxes.

joltdudeuc

iTrader: (6)

The case is not the issue, it's the gears themselves.

Click my link.

The later year WRX 5MTs and the LGT got thicker gears. Same gears the Japanese got in the R/RA Transmissions. Many have the same gear ratios.

joltdudeuc

iTrader: (6)

And they work well for most people. 600hp likely makes near that much torque, so yeah, these will not hold up. Hell, even the 6spd will have trouble with 600 ft lbs of torque.

UKn00b

My experience has differed a little, sure the older gears are smaller and weaker for that matter but the largest issue I have seen is case deflection allowing the gear stack to shift/tweak.

joltdudeuc

iTrader: (6)

Was this on regular joes cars?

joltdudeuc

iTrader: (6)

If UKn00b has seen it, I'll believe it. I suppose it doesn't matter what car it was in

UKn00b

Yea we had issues with cyro'd RA gears in Neil's old rally car and that thing made next to nothing in power through the restrictor (Around 320ftlbs and 230whp)

I've replaced the newer gearsets in customer cars with 6 speeds.

I broke 4th gear at 500whp on the first pull with PPG gears in a 5 speed box with a chassis girdle on it