PSC Motorsports FAQ: Steering Tech, Install Help & Warranty Info

Quick help from the shop guys who build this stuff every day.

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Where can I find install instructions for my PSC parts?
  • Head over to our Install Guides. We’ve got everything from bleeding procedures to bracket placement.
The number on my PSC sticker doesn’t match anything online—why?
  • That’s our internal tracking number, not a part number. Gears have the part number stamped on the case or gland nut. Pumps don’t have stamps—check our Pump Page or Contact Us.
How do I bleed my power steering system?
  • Follow our Bleeding Procedures. Take your time—rushing is the fastest way to aerate fluid and wreck a pump.
What’s the right fluid level in a PSC remote reservoir?
  • Halfway between the top weld bead and the upper black line of the PSC logo. Overfilling is the #1 reason fluid comes out the vent.
What fluid does PSC recommend?

Cavitation kills pumps. PSC 715 fights aeration, runs quiet, and handles heat. Can’t get PSC fluid? Use AC Delco Power Steering Fluid (and AC Delco Cold Climate Fluid where it’s freezing).

Do I need a cooler?
  • Yes. Heat kills fluid; cooked fluid kills pumps. Keep temps ~120–160°F. Mount the cooler outside the engine bay, slightly below pump level.
What happens if I mix fluids?
  • Don’t—unless you’re stuck on a trail. If you must, mix what you need to get home, then flush, replace the filter, and refill with PSC 715.
What’s “death wobble” and how do I fix it?
  • It’s not hydraulic—it’s mechanical. Check (and torque) in this order: track bar, ball joints, drag link/tie rod ends, control arms, bushings, knuckles. Replace anything worn or bent.
Which port is high pressure on my steering gear?
  • The Larger female port is high‑pressure IN from the pump. Most PSC gears are marked—confirm before startup.
Cylinder Assist® questions
  • Gear ports are -6 JIC for #6 (3/8") hose.
  • Not installing the cylinder yet? Leave the steel caps snug.
  • Need stroke size? Measure axle travel. Common numbers: Jeep D30/D44 6.0", JK/JL/JT 6.75", GM crossover 8.75".

 

Stroke measurement guide

Steering feels twitchy at highway speeds—why?
  • Caster’s off. Get a proper alignment from someone who knows off‑road setups. Positive caster usually fixes it.
Fluid spilling out the reservoir?
  • Usually overfill. Sometimes aeration at high RPM. Set the level correctly and re‑bleed.
  • Can also happen when there is air in the steering system
Warranty & Returns
  • PSC parts: 12‑month limited warranty (on‑road use).
  • Race-only/custom/off‑road‑only: guaranteed to function at install; no long‑term warranty.
  • Returns: get an RGA at support/contact first.
  • New returns: 90 days, uninstalled, resalable; restocking fee may apply.
  • Warranty returns: free shipping within 90 days.

Full details: Warranty & Return Policy