Product Summary

Universal Fit

  • Solves oversensitive steering problems
  • Reduces fluid flow from 3 GPM (gallons per minute) to 2 GPM
  • For applications using the O-ring style power steering hoses
  • Use with GM "type 1" power steering pumps
  • Includes detailed instructions for installation
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Key Specs

MFG. Part #91032918
BrandSpeedway Motors
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Need To Know

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Speedway Motors 91032918 Details

It is common to use an early GM power steering pump with a Mustang II power rack and pinion. Most who have tried it have found that the steering was twitchy or that it easily darts. This valve will replace the existing fitting in the back of the early GM power steering pump and reduces the fluid flow from three gallons-per-minute to two gallons-per-minute, which cures the problem. For applications using the O-ring style power steering hoses (use in conjunction with adapter insert # 910-32921 for inverted flare hose application). Installs in the back side of the pump (see above illustration pictures).

If converting pump from modern 16mm o-ring to traditional 5/8" inverted flare style hoses and utilizing this pressure reducer adapter fitting, use this fitting in conjunction with the following adapter insert and order (1) Adapter Insert 910-32921

 

Fitting thread size Information:

  • Pump Side: 3/4-16 Male (O-Ring Seal)
  • Hose Side: 16mm-1.5 Female (O-Ring Seal)

Charts

Speedway Motors 91032918 Specifications

KEY SPECS
MFG. Part #91032918
BrandSpeedway Motors
GENERAL
Sold in QuantityEach
Notes5/8-18 female thread, 3/4-16 male thread, o-ring 200-113(.103 x .562 id) used with 617648030

Ratings & Reviews

4.9

105 Reviews

Overall Assessment

Customers are extremely satisfied with this product, highlighting its high quality, practicality and easy installation. They praise its ability to effectively and notably reduce the pressure to their steering rack, which has increased their driving comfort by eliminating overly sensitive steering. Many users noted the product fits perfectly and solved their issues, even on race cars converted for street use. Customers also mentioned it's a must-have for using a GM pump with a Ford rack. It's perceived as an effective, affordable solution to a common problem, highlighting its capability to improve steering control and bring noticeable improvement. Despite a single report of fitting issues, the majority deem the product to be very well-made and would buy it again.

4.9

105 reviews

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Most Liked Positive Review

5.0

Troubled Steering

I had a terrible problem with my 53 Chev truck darting after installing mustang II and power steering. This valve solved all the problems. I feel like I'm driving a new car. Major improvement.

Most Liked Negative Review

3.0

I don't know, maybe it's me..............

I didn't like the way the steering responded with the shim set, used 3 shims for the Mustang 2, as per directions, it was still over sensitive. So I bought this on their recommendation and the response is the same. It was a pain in the a-- to get the pump out and back in twice. I going to have to take my chances with it as is till I find a better solution. Will have to find a Ford pump, and adapt it. But for the time being I very disappointed in both products.....Joe

Filter by Ratings

If I had another car... Yes I would buy these parts again.

5.0

22 days ago

The big G

U.S.A

Verified

I have not had a chance to install these parts. But, I will say they were packaged great, everything looks very well made and I am excited to get them on my car.

Would Recommend

I would buy again

5.0

5 months ago

49

Cedaredge colo

Verified

Good quality product

Would Recommend

another time saver

5.0

a year ago

Barry

Hampton VA.

Verified

I didn't even know I needed this for my power steering pump until I was checking out your catalog thanks Speedway.

Would Recommend

Must have part

5.0

a year ago

Retired GM tech

East Texas

Verified

Easy fix for swaps

Would Recommend

always had good luck with this product

5.0

a year ago

dave

North Dakota

Verified

Easy to install.

Would Recommend

Fits and works great. I'd buy again

5.0

2 years ago

g-nut

Spanish Fort, AL.

Verified

The flow valve fit great. I installed it, drove locally about 20 miles. Then just got back from a 668 mile road trip. Worked great, no leaks.

Would Recommend

Slowed the steering down in my truck!

5.0

2 years ago

Johnny Two Stixxx

Crossville, TN

Verified

Thai valve slowed the power R n P (89 thunderbird rack) down in my IFS 1950 Chevy truck. The Saginaw PS pump was putting out way too much pressure and the truck was all over the road. This made driving it much more enjoyable and safer.

Would Recommend

Yes, I would buy this again.

5.0

2 years ago

Doc

Cleveland, Ohio

Verified

This reduced the twitchiness in my steering. I have a rebuilt Saginaw gear box and power steering pump on my Chevy engine (olds 78 Cutlass). For some reason the steering was twitchy from the beginning. I am working through this but don't know why this is as it is.

Would Recommend

I would definitely buy this again.

5.0

2 years ago

Ryan 1954 ford f100

Michigan

This fixed the problem. I have a Mustang ll 1978 rack and pinion with a gm type 1 pump. After a lot of research I found that this is what I needed. You have to reduce the pressure and the flow. I installed the borgeson pressure reducing kit. It called for 3 shims to reduce it to 1.000psi. I installed 4 shims reducing it to 850psi. Then I installed this universal control valve for type l and type ll gm pumps. Speedway is the only place i could find one for type 1 and type ll pumps. Problem solved! I have great road feel at high speeds now. (Install both) I wrote this review to save you all the trouble and research that I went through.

Would Recommend

Great item

5.0

2 years ago

Jaybird

Hilmar ca

Verified

Speedway and it's products are always top notch merry Christmas

Would Recommend

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Showing 10 of 105 reviews

Questions & Answers

23 Questions11 Answers

Hi, Can you confirm me if I buy this part and the hose kit 91032530, I will have all the needed parts to connect my chevy steering pump to my Mustang II powered steering ? All the fittings will be good ? Do I need the adapter 91032921 (my pump is a new one placed by the engine builder and I don't know the model but I can send you a picture by email) ? Thanks a lot, Math,

by Math from Belgium

6 years ago

1 answer

Will this heat up the fluid?

by JSS

7 years ago

1 answer

I was told that I would want to use this part when using Mustang II-rack (T bird style) with Mustang II-GM Pump Power Steering Hose Kits Part # 91032530 with Tuff Stuff Chrome Saginaw Power Steering Pump-Reservoir/Cap/Hardware Part # 91032908-CHR...someone answered a question above saying NO dont need it? confusing? Will this work on T-Bird power steering rack? Thanks Asked by Bobby Ray 2 years ago Verified Reply - SteveThis flow valve is not required for the T-bird Rack using a GM Pump.

by Gene

7 years ago

1 answer

I had 2 shims in my flow valve. should i take them off when im using this flow control valve? If i use this flow control valve, will the pressure reduce more if i put more shims to the flow valve?

by Kimmo

8 years ago

1 answer

will this work with a 2000 camaro ps pump

by willy

8 years ago

2 answers

what is the orifice thru diameter on this valve?

by Kritter

8 years ago

1 answer

Will this work with early gm pumps that use seperate reservoir?

by Craig

8 years ago

1 answer

Is this valve all that's required or do I still need to reduce the pump pressure with a shim kit ?

by Digger

9 years ago

1 answer

Will this work on T-Bird power steering rack? Thanks

by Bobby Ray

9 years ago

1 answer

I have a 2005 Vortec Chevy truck engine with the stock GM pump going into a Mustang II rack. Will these hoses fit, and will I need the flow reducer valve? Are there any special part numbers that I will need to order?

by Burlie

10 years ago

1 answer

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