I need help! 1991 subaru liberty 5 speed manual 2.2L

Zacsulleh · Post by **Zacsulleh** » Sun Dec 16, 2012 10:45 pm

Gday guys, ive got my subaru lierty wagon and the synchro's in third and fourth are basically non existant.
so I swent to the local wreckers to try and source a second hand transmission to try and make one out of two.
now my main question is, there is a slight variation in the transmission identification serial number my current box is a:

CURRENT TRANSMISSION-ty752xh1aa

and theres a 93 model liberty with a trans model number of:

OTHER CAR- ty752xh2aa

can any one tell me the difference between the two box's and how differnt they are, are they interchangable and basically what the "2" means. if its just the diff ratios that are different, thats not a problem at all but if its something like the actual box being physically differnt in size and shape then obvously i will have to look else where. thanks guys let me know if you have any advice

niterida · Post by **niterida** » Sun Dec 16, 2012 11:25 pm

All Subaru boxes from Liberty,Impreza, WRX etc are physically the same and will bolt straight in. Diff ratios and internal ratios are the main differences. Both of these appear to be 3.9 ratio and from Gen 1 (89-94) Liberty - so you should be good to go

Zacsulleh · Post by **Zacsulleh** » Mon Dec 17, 2012 5:18 am

thanks so much mate

is there anything else i might need to know?

steptoe · Post by **steptoe** » Mon Dec 17, 2012 7:13 am

check the ratio of the rear diff of both cars......

AlpineRaven · Post by **AlpineRaven** » Mon Dec 17, 2012 10:48 am

yeah if the sticker is still there, if not remove the cover to see what ratio it is.
Also if its wagon its likely its dual range as well. Cannot tell you what the 1 or 2 difference.
Cheers
AP

FROG · Post by **FROG** » Mon Dec 17, 2012 2:35 pm

If you pm me the vin numbers I can tell what ratios are involved if you like

Zacsulleh · Post by **Zacsulleh** » Mon Dec 17, 2012 6:03 pm

Thanks guys you have all been a real help!

Zacsulleh · Post by **Zacsulleh** » Mon Dec 17, 2012 6:05 pm

whats the best way of going about that? in regardsd to checking the ratios if the plates are gone?

YouTube · Post by **El_Freddo** » Mon Dec 17, 2012 6:13 pm

Zacsulleh wrote:whats the best way of going about that? in regardsd to checking the ratios if the plates are gone?

Your VIN (vehicle identification number) is located on the fire wall in front of the driver. It's stamped on there so you'll have it unless some super dodgy person has ground it off!

Send this number with all it's letters etc and FROG will be able to look it up on the database and tell you what it was when it left the show room

Cheers

Bennie

RSR 555 · Post by **RSR 555** » Mon Dec 17, 2012 8:25 pm

niterida wrote:All Subaru boxes from Liberty,Impreza, WRX etc are physically the same and will bolt straight in. Diff ratios and internal ratios are the main differences. Both of these appear to be 3.9 ratio and from Gen 1 (89-94) Liberty - so you should be good to go

Where do you get your info from?

Liberty, Impreza, WRX all have different boxes. First you need to know what model/year it's from and then what ratio.

Zacsulleh, as for checking the ratio, if both boxes are out of the car, drain the oil and count the teeth on the front diff's crown-wheel.

From memory... 39 teeth = 3.90 and 37 teeth = 4.11

niterida · Post by **niterida** » Mon Dec 17, 2012 8:47 pm

RSR 555 wrote:Where do you get your info from?

Liberty, Impreza, WRX all have different boxes. First you need to know what model/year it's from and then what ratio.

I meant they are all externally the same and will therefore bolt straight in.
And a search on this forum showed both boxes to be 3.9

YouTube · Post by **El_Freddo** » Mon Dec 17, 2012 10:01 pm

RSR 555 wrote:as for checking the ratio, if both boxes are out of the car, drain the oil and count the teeth on the front diff's crown-wheel.

From memory... 39 teeth = 3.90 and 37 teeth = 4.11

Close Paul - in that era of liberty 37 teeth on the crown wheel is a 3.7:1 diff ratio. If it were 4.111:1 you need to know the pinion shaft has 9 teeth.

I think niterida was saying they're physically the same but the diff ratios can be different between the different boxes.

Anyway, been a long day for me, I'm sure it's been the same for others!

Cheers

Bennie

RSR 555 · Post by **RSR 555** » Tue Dec 18, 2012 2:45 am

niterida wrote:I meant they are all externally the same and will therefore bolt straight in.
And a search on this forum showed both boxes to be 3.9

Some are 4 bolt and some are 8 bolt and some use pull clutch whilst outers have push clutch.. these are all external things of difference.

All Gen1 Liberty dual range are 3.9:1 ratio

El_Freddo wrote:Close Paul - in that era of liberty 37 teeth on the crown wheel is a 3.7:1 diff ratio. If it were 4.111:1 you need to know the pinion shaft has 9 teeth.

3.7:1 ratio isn't available on the Liberty range, so it would definitely be 37 teeth crown-wheel and 9 teeth pinion, which would mean it's NOT Gen1 Liberty dual range box. This is process of elimination.

El_Freddo wrote:I think niterida was saying they're physically the same but the diff ratios can be different between the different boxes.

I read what he said and this isn't helping people for future reference. I don't want to discourge anyone in giving answers/advise, (IMO) it just need to be correct or we aren't really helping.

Some look very similar from the outside but get a bit closer and you'll see many differences.

Yes.. it's been a long day for me too

YouTube · Post by **El_Freddo** » Tue Dec 18, 2012 9:28 am

RSR 555 wrote:3.7:1 ratio isn't available on the Liberty range, so it would definitely be 37 teeth crown-wheel and 9 teeth pinion, which would mean it's NOT Gen1 Liberty dual range box. This is process of elimination.

I'm 99% sure that there are libertys with the 3.7:1 diff ratio. I just went and checked the one I'm driving but unfortunately the diff ratio sticker is missing.

If what you say is correct then the parts box I've got in the shed is a 4.111:1 ratio. I always thought the Gen1s were 3.9 then the "series II" versions went to 3.7s and they generally stayed there until you start looking at the turbos with their 4.1s.

I'm super keen to get to the bottom of this. Might have to scour a shopping centre carpark this arvo

I agree with the correct info comment too, that's why I'm sure I've seen these - and will wonder where I went wrong if I can't find one of these 3.7:1 libertys...

Cheers

Bennie

AlpineRaven · Post by **AlpineRaven** » Tue Dec 18, 2012 10:58 am

El_Freddo wrote:I'm 99% sure that there are libertys with the 3.7:1 diff ratio. I just went and checked the one I'm driving but unfortunately the diff ratio sticker is missing.

If what you say is correct then the parts box I've got in the shed is a 4.111:1 ratio. I always thought the Gen1s were 3.9 then the "series II" versions went to 3.7s and they generally stayed there until you start looking at the turbos with their 4.1s.

I'm super keen to get to the bottom of this. Might have to scour a shopping centre carpark this arvo

I agree with the correct info comment too, that's why I'm sure I've seen these - and will wonder where I went wrong if I can't find one of these 3.7:1 libertys...

Cheers

Bennie

There are 3.7:1 in Liberty. Gen 2 are 3.7:1 for sure. Ive always thought that Gen 1 always had 3.9:1. Very common in Automatics are 4.11:1. I think Gen 3 went back to 3.9:1 and some are 3.7:1.
Cheers
AP

niterida · Post by **niterida** » Tue Dec 18, 2012 1:37 pm

My Gen 2 liberty box is definitely 3.7.

Good points about the differences Paul but they do all still bolt up

RSR 555 · Post by **RSR 555** » Tue Dec 18, 2012 1:56 pm

niterida wrote:My Gen 2 liberty box is definitely 3.7.

Good points about the differences Paul but they do all still bolt up

3.7:1 ratio dual range?? I would be very surprised and shocked. Would have saved me a lot of hassle when building my hybrid box.

They will bolt up until you fit the starter motor

FROG · Post by **FROG** » Tue Dec 18, 2012 2:22 pm

RSR 555 wrote:3.7:1 ratio dual range?? I would be very surprised and shocked. Would have saved me a lot of hassle when building my hybrid box.

They will bolt up until you fit the starter motor

3.7 only 2wd isnt it ?

Zacsulleh · Post by **Zacsulleh** » Tue Dec 18, 2012 2:23 pm

Sweet as, also just out of curiosity does any one know of a good place to get aftermarket subaru wheels seeing they have a fairly unique stud pattern?

YouTube · Post by **El_Freddo** » Tue Dec 18, 2012 4:40 pm

FROG wrote:3.7 only 2wd isnt it ?

Well, run the VIN to I've PM'd you to find out. I'm sure this is a 3.7 diff ratio'd liberty. Let us know what you find

Zacsulleh wrote:Sweet as, also just out of curiosity does any one know of a good place to get aftermarket subaru wheels seeing they have a fairly unique stud pattern?

Aftermarket or second hand factory rims? If you're after second hand factory rims try ebay - you can get some great bargains on there. A mate of mine got a set of four with RW tyres for $250 including postage - less than he could have got 4 new tyres for the stock steelies that came on the vehicle originally

Cheers

Bennie