Hydro steering

I ran a stock PS pump from my Jeep (and still do) with a 2x8 ram from Tractor Supply for years without fail. I'm not going to crunch numbers mainly because I don't want to but it sounds like a pump issue to me. If you can't move the fluid then you'll have no fun. So tying in to what @Jody Treadway said, if you rev it up and it doesn't get better then you've got a pump issue, IMO.
 
I spoke with trail gear today and they also suggested rebuilding the pump.
 
Update
I pulled the steering pump off the sami and sadly found that it a super old TG pump (aluminum body) that's no longer supported. The inside of the pump had some deep scaring. Sadly....Yesterday I pulled the pump, lines, cooler, and resi off my XJ.
 
Update.....
I robbed the PSC pump off my Jeep and I made things worse. The darn thing would steer lock to lock if I had the front tires off the ground. When I let the jack down it flat out wouldnt steer. I tried a spare orbital and had the same problem.
The PSC pump had less than 5 hours of run time and had never gotten hot or made any noise.
Tonight I swapped a parts store 98 XJ pump and it steers better than ever.

I tried calling PSC and few times but now they wont answer. I sent a pretty detailed email to the tech support line and they responded back with "you should have between 12-1500 PSI"
 
How long are the arms coming off the knuckle? If it's too close to the knuckle, you don't have enough leverage.
 
The steering still didn’t want to go full lock with the engine running. I ended up taking apart the ram and found this. The piston could move/tilt and I assume is was letting fluid past the seal to the other side of the cylinder.
I went by Rotary Drill Service in Newton and they had the seals in stock. Hopefully this fixes my steering
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