automatic trans question

[Brett91]

hello, can anyone let me know if i can replace my 90 legacy auto transmission with one out of a 98 legacy. thanks 

[johnceggleston]

the trans will bolt up, plug in and operate correctly.

but you need to make sure the final drive ratios are the same.

 

do search for TZ102Z2DBA and TZ102ZAAAA, both of them.

(the first is an outback trans from 98 the second is an auto from a 95 lego.)

only the 95 actually matches your car.

but several of the posts that come up will contain either a list or a link to 90 - 94 auto trans final drive ratios.

that is what you are looking for.

 

95 - 99 auto trans

legos and imprezas had a 4.11 ratio (ej22 and ej18 engines)

outback, GT, LSi and forester had a 4.44 ratio (ej25 engines)

90 - 94 was not as consistent.

 

if you can't find the info that way,

just search www.car-part.com

and sort by zip code.

[Brett91]

thanks for the info. I have the whole 98 legacy. so could i change out the rear diff. (if needed) to match up?

[johnceggleston]

yes, you can do that,

but it is much less work to find the actual final drive ratio of your trans.

i think they are the same,

because i KNOW the 94 lego and the 95 lego are not.

the 90 - 94 years are split, 90 - 91 and 92 - 94.

i don't know why, but they are.

 

and since a 94 and 95 will not swap,

and since a 98 and a 95 will swap,

i think a 90 / 98 will swap,

as long as both are ej22 engines.

 

do the search..

Edited January 10, 2016 by johnceggleston