|
#91031366
GM Disc/Disc Proportioning Valve for 3/8-24 Outlets
- This non-adjustable proportioning valve is similar to 70's GM valves and provides OEM appearance
- This block incorporates metering for front brakes and proportioning for rear brakes into one unit
- For use with disc front and disc rear brake systems
$119.99
/each
In Stock
Quantity
Need Help? Call to Order
Add to a list
Select a vehicle to verify Fitment
Select Vehicle
Product Summary
Universal Fit, Disc Brake System Type, Brass, Natural
- This non-adjustable proportioning valve is similar to 70's GM valves and provides OEM appearance
- This block incorporates metering for front brakes and proportioning for rear brakes into one unit
- For use with disc front and disc rear brake systems
- Hard lines are included to connect to a master cylinder with 3/8"-24 outlets both front and rear
- Two 3/8"-24 IFF outlets for the front brakes and one 9/16"-18 IFF outlet for the rear brakes
Key Specs
| Proportioning Valve Type | Fixed |
| Port Quantity | 3-Port |
| Material Type | Brass |
| Finish | Natural |
| Color | Natural |
Need To Know
Need help?
855.313.9176Quick and Easy Returns
Return PolicySpeedway Motors 91031366 Details
Speedway Motors 91031366 Details
These proportioning valves are similar to what GM used on many cars in the 70s. They are non-adjustable and may require an adjustable valve in the rear brakes (if needed). Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit. For use with four-wheel disc brake systems.
Includes hard lines to connect to a master cylinder with 3/8"-24 outlets.
Item Details
For M/C with 3/8"-24 outlets.
Bottom Front Port: 3/8 "-24 IFF threads - goes to one front brakeTop Front Port: 3/8 "-24 IFF threads - goes to one front brake
Middle Top Port: 1/2 "-20 IFF threads - comes from master cylinder
Rear Top Port: 7/16 "-24 IFF threads - comes from the master cylinder
Rear Most Port: 9/16 "-18 IFF threads - goes to rear brakesBottom Front Port: 3/8 "-24 IFF threads - goes to one front brake
Top Front Port: 3/8 "-24 IFF threads - goes to one front brake
Middle Top Port: 1/2 "-20 IFF threads - comes from master cylinder
Rear Top Port: 7/16 "-24 IFF threads - comes from the master cylinder
Rear Most Port: 9/16 "-18 IFF threads - goes to rear brakes
Charts
910-31366 Instructions (PDF)
Guides & Documents
Speedway Motors 91031366 Specifications
Speedway Motors 91031366 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031366 |
| Brand | Speedway Motors |
| Proportioning Valve Type | Fixed |
| Port Quantity | 3-Port |
| Material Type | Brass |
| Finish | Natural |
| Color | Natural |
| GENERAL | |
| Brake System Type | Disc |
| Proportioning Valve Location | Left Mount |
| Thread Pitch | 3/8"-24 IFF | 9/16"-18 IFF |
| Outlet Fitting | Bottom front/Top front are 3/8"-24 IFF (to font brakes), Rearmost port is 9/16"-18 IFF (to rear brakes). |
| Pressure Safety Switch Included | Yes |
| Overall Length | 5.13" |
| Overall Width | 1.08" |
| Overall Height | 2.00" |
| Centerline of Holes | 2.69" |
| Notes | Includes hard lines with fittings, hardware, and bracket. This is a combo valve (metering for front/proportioning for rear) into one valve. Residual valves NOT built in. |
| Sold in Quantity | Kit |
Ratings & Reviews
4.7
25 Reviews
Customers positively reviewed our product, highlighting its ease of installation, quality, and suitability for various brake setups. Its hassle-free fit, functionality, and reliability in scenarios such as disc brake conversion and brake failure significantly stood out. Besides, it effectively accommodated vintage rebuilds. Some users appreciated its precise fitment and lack of leakage, elevating its practicality. However, a user advised necessary instructions for the safe valve position establishment. Overall, the product's performance appears consistent across different applications, prompting several users to consider repurchases. It appears superior compared to some leak-prone counterparts.
Ratings & Reviews
4.7
25 Reviews
Customers positively reviewed our product, highlighting its ease of installation, quality, and suitability for various brake setups. Its hassle-free fit, functionality, and reliability in scenarios such as disc brake conversion and brake failure significantly stood out. Besides, it effectively accommodated vintage rebuilds. Some users appreciated its precise fitment and lack of leakage, elevating its practicality. However, a user advised necessary instructions for the safe valve position establishment. Overall, the product's performance appears consistent across different applications, prompting several users to consider repurchases. It appears superior compared to some leak-prone counterparts.
4.7
25 reviews
5
22
4
1
3
1
2
0
1
1
Most Liked Positive Review
5.0
breaks
the valve works great in case of break failyour on one end. I was doing a burn out at state preade and blue a rear break line and the front breaks still worked great.pleas no burn outs in a croud of people. not to bright, thank god for the proportioning valve.
Most Liked Negative Review
1.0
I would not buy this product again
Speedway should be ashamed of selling this valve without the small adapter pin that needs to be inserted in the switch position before bleeding. I received the valve it came with no instructions to indicate if you installed and try to bleed the brakes without this pin to keep the valve in place the valve will shift position. At this point your screwed you can't get fluid to the rear brakes and you can reposition the valve easily.
Filter by Ratings
yes
5.0
19 days ago
LEO
TOPEKA,KS
Verified
1954 chevy 3100 update.works good.
Would Recommend
Yes I would
5.0
a year ago
Fields
Lincoln, De
Verified
Using it on my 1974 Chevy P10 step van that I converted to 4 wheel disc brakes
Would Recommend
Perfect replacement
5.0
2 years ago
FF 71 Elco
Denton, NE
Verified
Had to replace my original to add disc brakes to the back of my 71 El Camino. Installed perfectly into the original location. Comes with everything to attach directly to the master cylinder if you want to do it that way as well.
Would buy again
5.0
2 years ago
Jim
Lincoln, Delaware
Verified
Fit great, works great
Would Recommend
YES
5.0
2 years ago
WILLIE
IOWA
Verified
FITTED, WITHOUT ANY HASSLE
Would Recommend
Great product
5.0
2 years ago
Guido
Ontario, Canada
Verified
Easy to install and great quality
Would Recommend
worked perfect
3.0
3 years ago
harry
teladega
Verified
was good for disc brake conversion
Would Recommend
Yes
5.0
3 years ago
GLASS MAN
Elizabeth IN
Verified
My brakes work
Would Recommend
Was as described, delivered quickly. Would buy again.
5.0
5 years ago
C and C
Deerbrook, WI
Verified
Used in rebuilding/hotrodding a 1936 Chev pickup
Would Recommend
Nice part
5.0
5 years ago
Fishnuts
Saint joseph MO
Verified
The part work great would buy it again
Would Recommend
Showing 10 of 25 reviews
Questions & Answers
8 Questions • 11 Answers
Questions & Answers
8 Questions • 11 Answers
Installing in an 85F150 Stock front Disc, rear axle and brakes from a 99 Mountaineer, 3/16 line Will this valve work
by Mac
• 6 years ago
1 answer
View Answer
I have converted my 1988 K1500 to rear disc ,will this valve block work in this application ? If not which one will ?
by Tyckrider
• 8 years ago
2 answers
View Answers
Can the pressure switch be replaced with a brake lite switch to make the brake lites come on?
by Doug
• 8 years ago
1 answer
View Answer
can this proportioning valve be mount 16 inches from master with out any change to its function?
by Chris
• 10 years ago
1 answer
View Answer
will this work with disks front, drums rear?
by ellie
• 10 years ago
1 answer
View Answer
Brake Switch - Is this a brake switch for brake lights, or a switch to detect faults in line pressure?
by 57ChevyPete
• 12 years ago
1 answer
View Answer
Does this also function as a residual valve? I have mounted your brake pedal kit to the frame of my car with front disks and rear drum.
by billyisamountain
• 12 years ago
2 answers
View Answers
hi, this is a 3/8 outlet compared to the 91031352 has a outlet of ?. is the only difference between this 91031352 amd 91031366 ? thank you.
by chris
• 15 years ago
2 answers
View Answers
8 of 8 questions shown