Finally have some decent weather in Florida to work on the 1988 MERA without sweating to death. I pulled the front tray out to look at the top of the PS rack. Here are the pictures. What started as a small trickle will now drain the reservoir in a week or two. I have no idea what that hole is in the center, will need to drop the car on the ground to crawl inside for a better look.
I doubt anyone will have an answer, hopefully this thread helps those in the future.
I can give you a few uninstalled component photos if you want to compare them to your equipment. BTW, does your setup have all of the wiring harness and is it functional?
Nelson
[This message has been edited by hnthomps (edited 10-01-2020).]
Update - no leak when running either sitting still or turned left. When I turned wheel right and hit the stop fluid came out of the hole in the center. Does that mean the seal is bad and leaking past internally? I'm guessing the rack must work like a piston. Any help would be greatly appreciated.
There are a couple of different F-body racks. The one that I have has a "straighter" steering shaft input, IIRC. Sorry... can't check it or take pics. It's in storage.
Do you remember which F-Body has the straighter input shaft? I have been searching the internet for 2 days until my eyes bleed and can't find a rack with the same input shaft angle.
I have seen Fiero hydraulic power steering set ups that have used the Mercury Mekur XR4 or the 97 Z28 Camaro racks . SOme have used the "column assist Saturn unit
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Pictures of the factory power steering rack for full view. 
Back to the drawing board. Got the old rack out and the angle of steering input is not the same as 103-0160 which is 2000 F-Body rack.
