View Full Version : converting 2wd to 4wd?


scobaru
12-28-2002, 12:14 AM
I got a 94 base 4dr impreza with a 5speed 2wd drive. I wanna know how hard and how much money would it take to convert to awd drive train.

go go go
12-28-2002, 01:05 AM
I have everything you need to convert to AWD for sale.
It ususally cost about $1500 to $2000 if you go to junk yard but I am selling them for $1000 plus shipping.

93 or 94 AWD US Impreza transmission
drive shaft
whole rear member including rear diff
JDM rear VENTED DISK brakes with parking brakes
rear axles.
Rear sway bar
AWD Fuel tank.

believe me, this is a really good deal.
the only thing missing is front axles because they were broken in the shipping.

Joel Gat
12-28-2002, 01:08 AM
Hello,

Not too hard, not too much money, if you have a good junkyard near you. It's been too long since I did it on my '95 coupe. Basically, you need:

AWD Tranny
Driveshaft
Rear Diff
Rear Crossmember
Rear Hubs
Rear Shocks

Etc. Also, there is some disagreement as to whether you'll need a new gas tank. Most people say you do, but I was one of the first people to do the conversion and I still have my factory stock gas tank. So, maybe you do, maybe you don't.

All the parts just bolt on, nothing's really tricky. If you have a few friends to help, you can get the rear end assembled if you're afraid of taking it all apart. You can get a cross member with transverse links and hubs still attached (I've done that before) and then bolt that whole assembly in place.

Post up specific questions. As for cost, it all depends on your junkyard. I spent about $1200 doing the conversion.

Joel

scobaru
12-31-2002, 03:09 PM
is there any subaru car that has interchange able parts to convert to AWD? and go go go how much is shipping to wisconsin? I'm not quite ready to buy an AWD drive train yet but i will be in about a month and since I have a base model I have drum breaks soo I will also need to convert that so I prob will need some rear breaks and lines if they are different

Joel Gat
12-31-2002, 03:47 PM
Hello,

Not sure I understand your question, but parts are interchangeable between all imprezas. Many, but not all, Legacy parts also interchange.

As for what parts to get, go go go's deal is very good. Like I said, I spent about $1200 not including the brakes... and I have a very good relationship with my junkyard. I'm sure these days it would be even more expensive, now that there are lots of people looking for Subaru junk. :)

Joel

scobaru
12-31-2002, 03:55 PM
well by interchangable I mean like can I use an axle from a legacy or the half shaft from a svx like what will work or fit. with other parts.

Joel Gat
12-31-2002, 04:00 PM
Hello,

Right. I understood "interchangeable." I wasn't sure I understood "is there any subaru car". So the answer is yes, any impreza will work. As for Legacies, most parts will work. The cross member will not, but the hubs, diff, brakes, etc., will (aside from the newer legacy 4-link rear end stuff).

Axles is a different matter. If you actually look at the specs, almost every year, and definately between wagon, coupe, 4-dr, etc., the axles are slightly different in length. The amount is so small, I don't think it matters much. Maybe for hundreds of thousands of miles, there's a difference (thus Subaru bothers to make such differences), but I wouldn't be concerned about it.

Legacy axles are likely to be longer than Impreza axles by a significant enough difference to matter. But they might not be, I haven't measured.

Joel

scobaru
12-31-2002, 04:06 PM
thanks for clearing all that up for me

go go go
01-01-2003, 07:33 AM
I can ship it but not sure how much the shipping price will be.
I think it's gonna be $200 or $300 something like that.

I did AWD conversion a while ago.
I collected piece by piece from various junkyard and classified ads. I ended up spending close to $1700.

This one I have for sale is not from my car, It's from another car which had gone through JDM swap. The owner bought a 95 Japanese WRX and swapped everything.. and the left over is perfect for AWD swap and this is what I am selling (the owner asked me to sell them).
If I still have them by the time you are gonna do the conversion, you will be lucky because not only you save money, but also you'll save a lot of time and hassle calling around junkyards around the country like I did.

PM or e-mail me anytime if you are interested.

scobaru
01-03-2003, 01:16 PM
Can I use my FWD axles for the 4wd tranny? go go go it looks like I still need the rear hub's for the swap. also was the car a 2 or 4 door are teh drive shalfs the same?

go go go
01-03-2003, 06:07 PM
I'm not sure about the front axle. I think it's different though.
The combo I am selling has hubs and knuckles attatched already. Basicaly everything from brake rotor to brake rotor. All the rear suspention arms too. Everything is already mounted on the rear subframe.

If you want I can throw in AWD suspention for very cheap. The AWD suspension is optional but it has lowering springs.

All you need to do is, drop the FWD subframe with suspension and brakes still attatched. Put the AWD subframe, it has brakes, suspension arms and rear diff attatched.

Joel Gat
01-03-2003, 09:15 PM
Hello,

The front axles are the same. In fact, the transmission itself is the same, aside from the tail-housing and the end of the main shaft in the center housing. So everything is compatible. The only difference will depend on what cars things came from - if one car had a hydraulic clutch and the other didn't, you'd have to move the slave cylinder (hydraulic or cable-actuated) and you'd have to move the pivot point in the tranny (one bolt, very obvious, a 4 year old could do it). I use a cable clutch on my MY00 tranny, since my MY95 car had a cable clutch and I saw no reason to change the pedal box over to one setup for a hydraulic clutch.

Joel

scobaru
01-03-2003, 09:26 PM
go go go is the set up your selling from a 2 or 4 door? cuz chances are I'm going to need a 4 door drive shalf

GLwagon
01-03-2003, 09:35 PM
If there is any one who might have parts more localy (whole cars)
There is "Subaru Heaven" just outside Cambridge Wi in Dane Co. on US Hwy 12 between Madison & Cambridge. There are a lot of cars sitting there...
He doesn't have realy new stuff but, seems organized
I cant rember the number & he isn't open weekends...

I can get more info if you need it...

scobaru
01-03-2003, 09:38 PM
yah some info would be helpfull like a number or something

GLwagon
01-03-2003, 09:51 PM
Ok, this is kina sketchy but,
Mikes Auto Body, 300??? Hwy 12 Cambridge, WI
Phone (608) 423-4307

The sign by the highway actualy says "Subaru Heven"
I've only talked to him once & seems rather knoledgeable...
worst you can do is try.
best of luck
Gabe
If this is way wrong let me know I get over by there once in a while...

Joel Gat
01-03-2003, 10:04 PM
Hello,

Driveshaft lengths are the same, 2 or 4 door. As with axle lengths, the differences are minor. I laid two vastly different driveshafts side by side (MY95 2dr and MY00 4dr) and saw no difference. And at any rate, the expansion joint in the middle allows for a couple inches of difference, while if there is a difference, it's a couple millimeters at most, since I couldn't see it.

Joel

go go go
01-04-2003, 01:31 AM
It's from 4dr. 93 or 94 I believe. There was no 2dr back then:)

volksbug68
01-06-2003, 09:43 PM
Hi, i did an awd conversion on my 95L last year. The front drive shafts from my 2wd transmission did not work, the shaft size of the 2wd is smaller. Also, the 1.8 flywheel, clutch and pressure plate need to be swapped, and if you are using stock exaust, you need a different piece that goes around rear suspension. My Gas tank did need to be changed to a awd type, this also requires some slight mods to the top vents of the tank. It really isnt a bad job if you have all the parts to swap over. I used many different parts doing my conversion, some from legacy some from impreza. I can tell you i used legacy rear disk brakes, with legacy arms and sway bar, also, legacy rear diff. I just took my 1.8 out and put a 2.2 in because the 1.8 was way too underpowered, just a word of warning if you plan on using a 1.8. Hope this helps.

Joel Gat
01-06-2003, 10:55 PM
Hello,

Wow, see what I mean? Some people had to do way more changes than I did. Guess I was lucky! Exhaust had to change on my car, I forgot about that - I just swapped midpipe and muffler section. The part that bolts to the tranny is slightly different, I left that unbolted.

Heh, that just makes it more fun, when you discover things along the way...

Joel (been converted for 4 years already)

volksbug68
01-06-2003, 11:03 PM
Oh yeah, I just remembered, you need to change shifters too!! Haha, the list continues.

go go go
01-07-2003, 06:02 PM
Joel & Vbug>
Did you guys took out the transmission mounting point?
My 1994 FWD had additional piece welded onto the body that mounted the FWD tranny. It was around the rear end of the FWD tranny.
I had to cut it and bang it so that my 99RS tranny go in.
Some of it is still on my car and hitting the tranny sometimes :(

by the way I have 99RS tranny with cable clutch:)

Joel Gat
01-07-2003, 06:49 PM
Hello,

Nope, I had nothing welded. In fact, I run the '00 tranny with a '95 tranny mount and cross member. :)

Joel

volksbug68
01-07-2003, 10:26 PM
No, my FWD tranny mount was bolted right near where the AWD tranny mounts, there was nothing welded on. I actually used a 91 legacy 5 speed, and that trans mount and crossmember lined right up to factory tapped holes, that were previously not used with the fwd trans. My car is a 95 so maybe its different.