I have the PS toyota conversion on my 55, I went to pick-up my truck today and the hoses didn't look right. I installed this over12 years ago, my question is high-pressure side for toyota box closest to the outside of the frame or the inside. I looked at an article in a CT and it said the outside was the low pressure side, I looked at mid-fifty's site and it said outside is the high pressure, that is the way mine is currently hooked-up however, I thought it was the opposite. I also know the high pressure side screw will only go in one side however it screws in both sides and the low pressure will only go on one side. This is just for conformation on what I'm doing.
P.S. Do anyone have pics they are so much simpler than directions...

 

Jaye,
The high pressure hose is on the outside, closest to the frame. Hope this helps.

Gary

 

The high pressure fitting is 16mm, the low pressure is 17mm. The 16mm may seem to go into the 17mm port, but it will be sloppy. The 17mm fitting will not go into the 16mm port tho.

 

Thanks Guys