ive got the LSD, but do i need to grab the turbo trans?? the LSD is a 3.7 and my battle wagon is a 3.9. all the turbo's ive found are full time 4x4. ive thought about converting the full time to the DR by punching out a few plugs and such but im not sure. anybody know anything about if the ratios matter that much from 3.7 to 3.9??

Yeah, i think that would cause some pretty major binding when in 4wd. Definitely get the trans as well.

You could use your 3.9 tranny and just do the swap with the internals of the 3.7 and your existing 3.9 differential. There is an excellent write up in the USRM (I think it was Turbone who wrote it - please excuse me if I gave credit to the wrong author). If you switch transmissions you might have to look at different driveshafts also. So, if you're grabbing one thing you might as well grab it all. Be aware that tranny change mat require a clutch/flywheel change also. So grab that too.

You could use your 3.9 tranny and just do the swap with the internals of the 3.7 and your existing 3.9 differential. There is an excellent write up in the USRM (I think it was Turbone who wrote it - please excuse me if I gave credit to the wrong author). If you switch transmissions you might have to look at different driveshafts also. So, if you're grabbing one thing you might as well grab it all. Be aware that tranny change mat require a clutch/flywheel change also. So grab that too.

It is listed by McBrat but it has Qman's name on it.

http://www.ultimatesubaru.org/forum/article.php?a=36

Thanks for the correction. Hate to not credit the correct source.

Yeah, i think that would cause some pretty major binding when in 4wd. Definitely get the trans as well.

 

If you install a turbo trans in place of a non-turbo you will be deeply dissappointed. Do the diff swap as stated in the USRM. I have done it a dozen times and it pays off.

If you install a turbo trans in place of a non-turbo you will be deeply dissappointed. Do the diff swap as stated in the USRM. I have done it a dozen times and it pays off.

 

aside from the trans being an all wheel/full time four wheel drive tranny, are there any other reasons why i would be dissappointed?? i thought the turbo tranny's were stronger...... i dont really want to change the tranny out so this should help a load. i think i might change out the gears this week since the motor's out of the battle wagon and all.

well if you put a turbo trans in you will need diffrent cv stafts. but i think Qman was refering more to the fact you will go from a 3.9 ratio to a 3.7 ratio

Yep!

Yep!

 

got it guys, thanks.