Which brake line coming from the brake reservoir goes to the back brakes
Cars are designed differently, even same car, new model can have design changes. If you suspect you're having a problem, you should not take any chances: either get car on a lift or on floor jacks. Then trace the particular brake line rear-right, rear-left backwards from caliper all the way back to reservoir.
well.. assuming you have ABS you would have to trace your lines from the master to the pump and then figure out which lines split off and go to the back, etc. I like Dann0's post. Safety first Todd. You can probably buy a super cheap electronic manual from ebay. I've done it for SF and SG foresters.
Search Subaru Legacy Questions
Subaru Legacy Experts
Related Models For Sale
Used Cars For Sale