Power Steering Pumps


Our power racks have standard limits for power steering pumps, however Steeroids WILL work with all stock power steering pumps. If you have an aftermarket pump that you are considering using with our kit, please refer to the following information:
The pump cannot have a max pressure exceeding 1250-1300 lbs.

The pump cannot have a max volume exceeding 2 gallons per minute UNLESS you have a system (such as Hydroboost braking systems) that includes an additional amount of fluid over the stock amount. Why? If you run just from the pump to the rack, then back to the pump, excessive heat is the enemy. Any more than 2 gallons per minute could damage the rack. Systems with additional fluid and routing allow the fluid to cool, allowing some pumps with higher outputs. Unfortunately, higher output pumps may result in slightly less resistance in the steering wheel. This, of course, is a matter of preference for the driver.

FLUID – Please do not run synthetic fluid through your rack unit until the break-in period is over, usually around 1000 miles.

If you are looking for more road feel (or greater resistance in the steering wheel), chances are your suspension is what needs to be adjusted – not your pump. Caster, camber and alignment have more to do with the steering wheel resistance than pump pressures for the most part. Please refer to the recommended settings below before adjusting your pump. If, after trying these settings, you still do not have enough resistance in the wheel, you can try a pressure reducing kit. Please call for more information on pressure reducing kits.

Toe (total) – 0 to 1/8″ (increase from 0 for greater stability)
Camber – 0 to negative .25 degrees
Caster – 3 to 6 degrees positive (add as much positive caster as possible)

The pumps that we offer have all new interior parts. The housing is a refurbished non-wearable part.

Diagnosing Power Steering Problems
When trying to determine what is causing a problem in your power steering, keep this in mind. If the problem occurs only in one direction, the problem is probably in the box or rack. If the problem is in both directions, it is most likely the pump, dirty fluid or hoses. Be sure there are no kinks or obstructions in your power steering hoses.

Dirty Steering System
Before changing any single component of the steering system, inspect the cleanliness of your system. Dirty or black fluid can quickly ruin new steering components. If changing the box or rack, rub your finger on the inside of the reservoir. If it isn’t clean, you must flush the pump and hoses with clean fluid before installing new components.

Bleeding Power Steering
All power steering systems are designed to be self-bleeding, but sometimes they need a little help. After installing new components, fill the reservoir and let it sit for a few minutes. Raise the front end of the vehicle and turn the wheels back and forth slowly with the engine off to allow the steering box to draw fluid. Keep the reservoir full. When the fluid level stops dropping, start the vehicle and continue turning the wheels. When the fluid level remains constant the system is fully bled.

Put cardboard under the front tires while testing your steering system. The cardboard will slide on the floor and prevent wearing flat spots on the tire from excessive turning of the wheels while not moving.

IMPORTANT NOTE: All GM power steering pumps generate approximately 1,000 to 1,200 PSI of line pressure. This is compatible with GM steering boxes and GM rack and pinion units. If these pumps are used with a Mustang II rack and pinion, the steering will feel too sensitive on the highway. This can be corrected by adjusting the pump’s flow control valve to generate the proper pressure for the Mustang rack.