i have a 97 legacy outback limited with a 2.5 and automatic that has a bad trans. i'm not sure how to tell what the ratio is to put in a new one. i have a trans from a 96 legacy outback and 2.5 but i'm not sure if it will work. i got the numbers off the tags under the hood and didn't know if those would help. (1) is tz102zaba (2) is tz102z2cba. HELP!!!!

 

thanks steve

(1) is tz102zaba

this is a typo, you are missing a characture after the second 'z'. it should be (if original) a 'tz102z2aba', this would make it compatable with your 97. the final drive ratio is 4.44 on both. if there is not a '2' after the second 'z' then it is not compatable.

 

edit: any auto trans 96 - 98 from a 2.5 outback, GT, or LSi will work.

i have a 97 legacy outback limited with a 2.5 and automatic that has a bad trans. i'm not sure how to tell what the ratio is to put in a new one. i have a trans from a 96 legacy outback and 2.5 but i'm not sure if it will work. i got the numbers off the tags under the hood and didn't know if those would help. (1) is tz102zaba (2) is tz102z2cba. HELP!!!!

 

thanks steve

 

99% sure it will work. They are both the same ratio. I don't know of any differences.

does anybody know where to go to get the information on what all the letters and numbers mean and what final drive ratios i have in my cars?

 

99% sure it will work. They are both the same ratio. I don't know of any differences.

Relax: As long as they both come out of a 2.5 DOHC car you are golden. Put it in and have fun.

does anybody know where to go to get the information on what all the letters and numbers mean and what final drive ratios i have in my cars?

this is about as close as you will get ot understanding the part number.

 

http://www.ultimatesubaru.org/forum/showpost.php?p=581064&postcount=6

 

plenty of informatrion in the thread it came from.

http://www.ultimatesubaru.org/forum/showthread.php?t=71754&highlight=tz102z2%2A

and this:

 

http://www.ultimatesubaru.org/forum/showpost.php?p=585831&postcount=15

an observation about swapping a trans and going with a new final drive ratio.

when subaru first introduced the 4.44 final drive in the outback in 96, they matched it with 15 inch wheels which had larger diameter tires. the legacy's had 14 inch/ smaller tires and 4.11 final drive. the difference in final drive ratio and the difference in tire size complement each other. in other words, there is no substantial difference in the fuel economy or the power ratio in these 2 tire / differential combinations. this is why the outback has about the same gas mileage as the legacy.

 

if you want more power put on smaller tires. if you want more economy, put on larger tires. but don't expect the car to drive the same. if you swap the final drive and want the car to drive like before, change the tire size to match.

 

one exception to the above statement, the 96? - 99? leg GT has the outback 4.44 final drive and the smaller tires (on 16 inch rims) equal in diameter to the legacy L. this makes it "quicker", more powerful and slightly less economical to run.

 

this is true for a/t , manual trans have different final drive ratios (3.9 leg vs. 4.11 outback, 96 - 99), but the relative proportions are the same. larger tires = more powerful final drive and vice versa.

 

any questions ???????????