Ya the routing is from the pump pressure out to the brake booster then a pressure line from the booster down to the steering box. From the steering box is the low pressure return to the reservoir with a low pressure tee tap from the booster as well. My booster is from a Astro van and is a new unit that is sold on Ebay with the mounting bracket and rod already set up for a YJ. I got tired of messing with my brakes and just dropped the cash so I wouldn't have to mess with it anymore and Im glad I did. It came in and worked as advertised. I have been told that the Astro van unit can cause some problems with the steering assist and won't work with full hydro but 87TPIYJ told me the thinks a unit from a chevy 2500 would flow more than the van unit. I don't know because its working fine with my 1.75" ram except when trying to turn fast at an idle like into a parking spot, other then that I haven't had a problem.:grin2: