I am evidently in need of a steering box for a 79 250 supercab 4x4. I was cruising down the road and lost most of my power steering. I can tell it is trying to work a little.
So far, I have jacked the truck up and turned the wheel....no better
ensured proper fluid level and belt tension
intalled a reman pump....no better
greased entire frontend...no better
ensured hubs are unlocked and case is in 2wd
The only thing I can think of is a blown seal inside the box. I added some fluid a week ago(1/3 pint) now this. I was actually going straight when it happened. I seems slightly better turning to the right than the left.
Any ideas? Never had anything like this happen. Thanks in advance.

 

Shameless bump.......Has anyone else had this problem?

 

You haven't adjusted the steering box and over-tightened it, have you? I've seen them get tight like that, even lock, from over-tightening.

 

No, I have not touched the steering box. I bought it with 64,000 miles and it now has 70,000 miles on it and all I have done is regular PM. Thanks.

 

I've had this broblem with a few fleet trucks. Replace the gearbox and problem fixed.

 

I would put a gauge in the high psi line and see whats going on before doing anything. Rebuild kits are cheep. I'd fix what I have because you probably aren't going to get a good used one, even if you find one I'd still rebuild it before putting it in.