Help!!!! I have an 89 SE with a leak in what appears to be a hydraulic distribution head (Not the master cylinder, but a box where all the brake lines go into it and then out). I can't find any source for parts and don't even know what to call it. One of the tubes is split and spewing brake fluid.

 

is it at the right front of the engine bay? if so, that's your ABS pump.. not a cheap fix.

 

Yep ABS pump. I just replaced mine about a month ago. I got mine from Dixon Auto Wreckers in CA. I did a search on www.car-part.com and found it for $150 compared to like $900 from the dealer.

Not hard to do really, Its heavy and sits on a bracket, I removed it from the bracket, some folks take it and the bracket out together. Just undo the brake lines, unplug wire harnesses, and either unbolt the pump from bracket or unbolt the bracket and remove, then put new one in and bleed the brakes. I had to bleed mine several times with a one man bleeder to get all the air out. Do a search for ABS pump too, you should find some info, thats what I did.
Good luck.