Just ordered the SG-752 Steering Box from PSC. Talked to a guy named Daniel who was very helpful. He said their “R” version is for trucks with larger wheels/tires. I told him about the play in the steering wheel and how touchy/sensitive it was.
He suggested that I could put a larger pulley on the steering pump. That would slow the sensitivity to input.
Anybody install a larger pulley?

 

Assuming you got the PSC steering gear installed by now? How do you like it?

 

Only time will tell on the longevity, but for now, it is a smooth operator. It is a little too smooth for my liking, so I installed a single Bilstein 5100 steering stabilizer. That might have slowed down the sensitivity a little bit, but not much. The steering now reminds me of the feeling I had with our 97 Expedition, which was sensitive.
Bottom line: when I point the Ex where I want to go with the steering wheel, the Ex stays pointed in that direction until I move the steering wheel. In other words, it does what it is supposed to do without wavering.
I would not spend the money on this box until you replace the lower steering shaft with a Borgeson. I got mine at Summit Racing. It removes all the play from the worn out “rag” joint. The Borgeson uses an all metal u-joint, so no play.
By the time you replace your steering box with a Red Head, Ford Motorcraft and Blue Top, like I did, you come out with more money in your pocket by just getting the PSC and Borgeson.
I got the standard PSC with no assist. The upgraded version, according to the PSC Tech I talked to, is only for rock climbers that need even more sensitivity.
The real test in driving is when you are rolling down the road and you day dream about what ever and the thought about steering is nonexistent.
By the way, you have to install GM Steering Box Fluid. Totally remove all the red stuff and install the clear GM stuff.
I used a SPC (Specialty Products Company) Fastrax Alignment gauge with Toe measurement and installed SPC solid camber/caster bushings/sleeves recommended by Tom, one of their Techs. He told me what degree bushing/sleeve to purchase and the correct clocking according to my measurement reading using 0 degree bushings/sleeves. The result is 4 degrees caster on each tire and perfect camber for the right tire and almost perfect camber for the left (just a sliver off).
I’ve had our Ex “aligned” by numerous so called experienced mechanics
and none have even come close to what Tom put me at.
Any more questions, please don’t hesitate to ask.

 

So how's this feel after a few months? Been noodling one over for the F350.

 

PSC is still going strong. Been on multiple camping trips pulling our 8,000 pound TT last year. It is still sensitive, but I got used to it. It reminds me of my 1997 Expedition that also was very sensitive.
Bottom line: it goes where I point it and doesn’t have any play. The Borgeson steering shaft is about half of the problem solved.