Prajekt L: 2700lbs of Fury

I've got a cable type clutch/brake pedal assembly lying around if you need it. I also have a brand new clutch cable that is of no use to me.

Over on the BBS some guys have put in 4.111 trannys in their TLegs and they seem to hold up better than the 3.90 that they come with, prob from the gearing. If you are looking to get PPGs down the road, a WRX case is a must.


The 5MTs share the same basic arcitecture, but there are variances in the case among other things. One can get PPG gears for the old T leg case, but that set runs about $5200, as opposed to the $3500 for the WRX case.

 

ok guys...it looks like i'll be getting a kaaz gearset with 1-3 straight cut, 4-5 helical for this beast.

now for what i dont know. what exactly am i going to need for this?

i'm obviously going to need clutch cable, shifter assembly, etc....but what about the rear diff, axels, etc?

 

rings, bearings, forks, output shaft

might as well replac'em since ur cracking open the case to install the kazz

 

Yup, I've read that also.

The thing people are complaining about with the '06 tranny is that the final drive was increased to 3.7. Also the center diff is now a 1:1 ratio.

 

what in the L can i keep using, and what needs to be replaced(and with what. stock wrx stuff?)

 

The only non helical gear in any of the transmissions is reverse. All of the forward gears are helical, in mid 03 the transmissions recieved a wider (1mm) gear set that is the same width as the RA gearsets just not the same ratios. The 06 onwards got the Forester XT drivetrain, which featured a better synchro design for first and stronger gears, or so Subaru claims. We have 2 broken ones at the moment. The 02-05 transmissions are different than the 06 onwards, so it's not really an apples to oranges comparison.

 

rings? bearings? which ones are you talking about?

i figured i'd need a different drive shaft. what abour rear diff? can i use the 96L rear diff until it breaks? what about axels, can i use those?...and if i need a stock wrx rear diff can i use the stock L axels?

so many questions..yes i know.

 

when I say the rings, bearings, etc...I meant it on the tranny itself...You should be able to get these at any dealership Brian or Eric should know what I'm talking about oh and yes, new synchros would be good too. They aren't upgrades just pre-cautionary stuff especially when your replacing your gear sets...

The bright side, u already have straight cuts gears! Just go reverse/backwards driving and you'll love the whining noise...

 

the tranny has new synchros(5k on them) so i shouldnt have to worry about that.

oh and i'm not getting just the gears, its the whole case. so would i still need to do the bearings and rings?

 

5k on the synchros is good...as for the bearings and rings...I would replac'em...they don't cost much to replace might as well

 

"What about 06+ WRX owners? Your final drive is 3.70 vs the previous year models' 3.90. This in effect adds 6% more load to your gears vs. previous years. While it's impossible to calculate this into the shock load formula mentioned above, it is noted that there are an increasing amount of 06+ owners with broken gears being seen here. So shift/drive kindly, investigate increasing your apparent final drive through smaller diameter tires, and temper your power modifications based on how soon you can afford to upgrade gears.
"

 

oh, you're buying a tranny with those gears already installed?

 

yeah sorry i forgot to say that orginially. per my phone conversation with fuji 2 minutes ago i think they only thing i will need is a wrx drive shaft and wrx rear differential. i may need wrx axels but that depends on what year the wrx box is.

 

That's the first time I've heard that the '06 has the same gears as the FXT. Do they have the same part numbers?

Doesn't the FXT also have a shorter final drive?

 

The 04 fxt has gears that are all its own 05+ same as wrx

 

i'm starting to find some not so great info on kaaz gearsets. everyone is always promoting ppgs but not kaaz. ppgs are to dang expensive for me right now though.

 

grand..and now i'm finding people with broken kaaz trannies and they cant get any replacement parts for them from kaaz.

 

The kaaz are aroudn $3k last I checked!?!

 

just go with ppg and get it done right the first time

 

^Agree...

 

going from auto -> 5spd you will need new fron axles IIRC. check part numbers to make sure. but i am fiarly sure the 4eat is wider that the 5spd. you will need the longer 5spd drive shaft and a rear diff with the correct FD. so 3.9 for wrx, 3.7 for 06 apprently, and 4.11/4.44 for jdm goodness.

of course there is all the other stuff. clutch master cylinder, shift linkage, pedal box..... get a hill holder while your at it!

 

93-99 impreza, same part number...so it doesnt matter

 

^ the FWD ones are different!

 

not the reman ones we stock! fwd legacies are different, thats all!

 

^ Negatory! Klesk's 1.8l FWD L, has different axles then the other imprezas. IIRC different spline count. we ran into some severe issues with shearing roll pins using normal axles. TRUST me they are different

 

Thats cool! whatever parts store he was getting his crap at was wrong, did he try subaru axles? i dont think so!

 

heres what im looking at SOA966H900R1 is the part number 95-99 legacy 98-00 forester 93-99 impreza

 

yep they are. legacies (even FWD ones) and AWD imps use 25 spline axle stubs on the tranny, and the FWD imps use 23-spline. I pulled a set from a FWD 5-speed imp at upull for austin so he could do a Dual Range conversion using a non-turbo EA82 trans (23-spline). I tested them on all my trannies, fit on FWD EA82 AT (23-spline), and NOT on a RX D/R 5MT (25) or legacy FWD AT (25).

the FWD imp axles are the holy grail for EA82 guys doing 5-lug conversion and non-turbo tranny.

but they're all the same length.

and as long as it's AWD, it'll be 25-spline, doesn't matter for auto or manual....

BUT, I believe the newer cars (i.e. WRX) don't have stubs in the tranny. I know Dan ran into problems with the front axles when trying to put a 6MT in his legacy, and IIRC WRX and STi axles are interchangeable, the STi ones are just thicker.



also, according to my SOA parts Quick Reference guide, there are about 20 different axle part numbers. but does show the same one for imprezas, pre-'96 FWD AT, and 4WD MT, and 8/'94-'95 FWD MT, but '92-7/'94 FWD MT has a different one.

 

then there is somthing wrong with chris's car, because i sold the same axle to a customer for their fwd impreza, and on the same day, the same part number for an OBS so unless you can show me you used a genuine subaru part from either a used car, or from a dealer i wont believe it

 

subaru didnt have any reman axles for the fwd, so it would have been 300+ per axle.

[/hijack]

 

same part numbers through-out

 

IIRC there was some super secret well hidden FWD axle part number. Brian Shorten found it ofr me back when we were changing axles.

ok [/hijack] for real this time.

 

agreed end rant

 

so i found a little time to start working the L again last week. i was entirely sick of the L suspension so i swapped on the v8 jdm spec c suspension that i used to have on the wrx. everything went pretty smoothly. the rears are a little messed because i had to use the rear L top hats and the tops of the springs dont sit perfect against the bottom of the top hats. still drives alot better though.

also got my fenders flared/pulled by methodless a few weeks back...thanks alot for the help method!! we didnt end up leaving the shop till about 3-4am that night.

martin- post up those pics of the fender flares.


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started with the fmic mocking up tonight. went ok. originally i wanted to keep the entire bumper beam but that just isnt going to be possible. i had to chop off the bottom half of it to fit the fmic. this was a mild pita.

i'm considering going with a reverse intake manifold if fobia can do it.

been talking with a guy that parts out wrx's so i have a lead on a ej20 with tranny, subframe, rear diff, axles, crossmember, all engine accesories, ecu, brakes.








a pic of the fender roll that methodless did...

 

why didn't you just chop the whole entire bottom beam off??? thats what i did to mines..and it hold pretty good!

 

because safety is important to me. i really didnt even want to touch the bumper beam to begin with so i only took out the pieces i need. plust the bracket that holds the beam into the car is attached to both upper and lower parts, so if i were to take off the lower part it would only be 1/2 assed attached to the car.

 

The older cars need all the help they can get in term of chassis rigidity.

 

yeah i agree. any ideas on how to stiffen it up more?? i already have front and rear strut bars.

 

All of the newer transmissions/diffs are stubless I believe. I am using Tleg rear axles on my 02 impreza with my LSD. Also everyone keeps saying the WRX had a 3.9 rear diff, I'm pretty sure only the STI had a 3.9. Automatics had 4.111's and manuals were 3.73's I think.

 

Gut the interior (it's tan anyways....) and cage it.

 

its 1/2 gutted now. i wish i had a pipe bender so i could build a cage myself

 

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=35336

:biggrin:

 

seam welding.... 4 or 6pt cage...

 

thats not gonna bend the grade piping you want for a cage effectively... thats usually for copper piping and stuff... or very light guage exhaust piping...