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800.979.0122

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Wilwood 260-11179 Adjustable Proportioning Block

Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Anodized
Outlet Fitting:
3/8"-24 IFF
MFG. Part #:
260-11179
Minimum psi:
100
Maximum psi:
1000
Garage Sale:
No
Centerline of Holes:
2.68
Overall Width:
1.30
Overall Length:
5.00
Overall Thickness:
4.30
Notes
All ports are 3/8"-24 inverted flare female.
Wilwood 260-11179 Adjustable Proportioning Block
Product Video
Wilwood 260-11179 Adjustable Proportioning Block

Click image to enlarge

Watch the video below to learn more about the differences in brake lines, flare types and fittings you may want to consider before plumbing away on your current chassis project.

Details

Reviews

Q & A

What's in the Box

This block has the proportioning valve built-in to the rear brake ports and a stop light switch built into the front brake ports. All ports are 3/8"-24 inverted flare female.

  • Compact design simplifies mounting, plumbing, & wiring
  • Maintains full isolation between front and rear fluid circuits
  • Rear circuit has a single inlet and single outlet with the adjustable proportioning valve
  • Front circuit has a single inlet with two outlets

Proportioning Valve Installation Instructions (PDF)

Brake System Builder's Tip (Link)

Detailed Schematic of Proportioning Block 

Learn more about how adjustable proportioning valves work by reading our tech article. Brake System Selection.   

Specs

 

Customer Reviews

Rated 4.6 out of 5 by 14 reviewers.
RATING BREAKDOWN
14 reviews
5 Stars
10
4 Stars
3
3 Stars
1
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Jeeper Dude
Verified Purchaser
Verified Reviewer
Longmont, CO

Block performed as advertized

August 25, 2015
Easily modulate the amount of brake pressure to the rear brakes. Instructions correctly inform regarding usage.
Pros:
  • Performed As Advertized
  • Good Value
  • QUALITY PRODUCT
Yes, I recommend this product.
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Bill Bailey
Verified Purchaser
Verified Reviewer
Cypress, TX

Wilwood Adjustable Proportioning Block 260-11179

August 17, 2015
Called tech support at Wilwood and they suggested that the case be grounded to make the brake light switch work. That did not change anything. Changed the switch and that did not help. Changed the proportioning valve with a new switch and that did not work either. Ended up adding a mechanical brake light switch and that worked. Speedway Customer Service was great and offered the return of the block and shipped out a replacement. Still do not know why the switch on the proportioning block did not work for me. Maybe it needed a higher pressure to activate the switch?
Yes, I recommend this product.
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Mr65390
Southington, CT, USA

Nice looking

August 22, 2014
I purchased this Propertioning block for my 41 chevy resto-rod project.I needed it for the brake line instale and mock-up.As for how it works ,I can't comment.But if it works like it looks then I'll be happy.
Yes, I recommend this product.
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jjones515
cincinnati

wilwood adj. proportioning block

December 25, 2013
glad i picked this proportioning block for my car. wilwood great t and dependable name brand in auto parts
Yes, I recommend this product.
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ATVYP
Park Hills, MO, USA

Great product for every need.

September 21, 2013
I shopped and compared different proportioning valves for a long time before purchasing this one. I made the best choice! This valve is a must for any car builder application, has many different options for hooking up, a small size, and very quality. If you are shopping for a proportioning valve, this is a great choice!
Pros:
  • Size
  • options
Yes, I recommend this product.
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Pecdaddy
Las Vegas, NV, USA

Works well

September 19, 2013
Used on my hot rod Model A. Fit where I wanted well.
Yes, I recommend this product.
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BadgerBob

Works great for Universal Retro of Discs

September 19, 2013
I used these to retrofit my FJ40 - worked great. This unit is easy to work into you system and mount (custom mount req;d)
Yes, I recommend this product.
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Lone Star Street Rods & Restorations
Verified Purchaser
Madisonville, TX

awesome product

April 06, 2012
Awesome compact product that eliminated adding the brake light switch elsewhere fewer fitting fewer leaks
Pros:
  • Compact
Yes, I recommend this product.
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safari 2
Verified Purchaser
michigan

excellant product

March 30, 2012
Easy setup
Pros:
  • Lightweight
  • Easy To Install
Yes, I recommend this product.
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smithmotorwheel
Verified Purchaser
Brownsburg, IN

Wilwood Combination Proportioning Valve

November 05, 2010
I bought this to use in place of the factory combination valve which had gone bad. It was a great deal and I'm happy with the purchase. I just wish it had included fittings for 1/4 line to attach the rear brake supply.
Pros:
  • Compact
  • Affordable
Yes, I recommend this product.
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Page 1 of 2

Product Q&A

8 questions : 8 answers

1 answers

BLEEDING/PROPORTIONING VALVE 1965 Falcon Gasser.I've bought the straight axle kit(not whilwood calipers)weld on rear disc brake set up 9 inch Ford rearend.The proportioning valve 260-11179 and master cylinder #10-1518.I can't get hardly any pedal.When I mounted the proportionig valve next to the mastercylinder,the lines that come out the side of the master and goes to the top of the prop valve.When I bent the 2 lines from the master to the prop valve they come up alomg the side of the master meaning the bent lines are tthe same levell as the master.Is that my problem?Do the lines to prop need to be lower then the master?

1965ford
Hartford, SD 57033, USA
September 12, 2014

BLEEDING/PROPORTIONING VALVE 1965 Falcon Gasser.I've bought the straight axle kit(not whilwood calipers)weld on rear disc brake set up 9 inch Ford rearend.The proportioning valve 260-11179 and master cylinder #10-1518.I can't get hardly any pedal.When I mounted the proportionig valve next to the mastercylinder,the lines that come out the side of the master and goes to the top of the prop valve.When I bent the 2 lines from the master to the prop valve they come up alomg the side of the master meaning the bent lines are tthe same levell as the master.Is that my problem?Do the lines to prop need to be lower then the master?

Answers

September 12, 2014
EricM
The proportioning valve location normally is not an issue but if things are just right an air pocket could be inside and bleeding will not take it out. You could try reverse bleeding to see if that helps or if you want to you could lower it slightly. If you have power brakes you need to make sure the master cylinder is for power and if multi-use there should be a cylinder or slug included with it that goes inside the piston to eliminate the deep bore for the push rod. Between the booster push rod and the piston there needs to be about 1/16” gap and this is adjustable. If you have manual brakes and it takes too much travel check the master cylinder bore size. You need 1” to 1 1/8" depending on your pedal ratio. Also you could simply have air trapped in the system that is tough to work out. Try jacking up the front as high as possible and bleeding all brakes, then let it down and do the same to the rear. If this seems to help repeat the process. At times you may need to jack up one side of the car and bleed, then jack up the other side of the car and bleed to work out a stubborn air trap.
1 answers

Are drum/disc residual pressure valves needed with a 'standard' muscle car application? For example, with the master cylinder located in the stock location in the enginer compartment? Car has disc front, drum rear.

btbarrett57
Ardmore, OK 73401, USA
August 14, 2014

Are drum/disc residual pressure valves needed with a 'standard' muscle car application? For example, with the master cylinder located in the stock location in the enginer compartment? Car has disc front, drum rear.

Answers

August 14, 2014
EricM
No residual pressure valves are not required when the master cylinder is mounted up high on the firewall.
1 answers

Fitment question? I have a 1993 Chevy Fullsize Blazer that the factory proportioning valve expired and Chevrolet has stopped making them . I cannot locate one and this is my last resort, will this work on my truck?

Dancarachuelo
New Hampshire
November 28, 2013

Fitment question? I have a 1993 Chevy Fullsize Blazer that the factory proportioning valve expired and Chevrolet has stopped making them . I cannot locate one and this is my last resort, will this work on my truck?

Answers

November 29, 2013
EricM
You could use this on your truck but you will have to adapt the lines from your truck to be compatible with the 3/8-24 IFF connections of this proportioning valve. This will not be a bolt on installation and will require some flaring of brake lines and some additional adapter fittings to be used.
1 answers

Use with residual pressure valves What is the correct placement of residual pressure valves in conjunction with this product, ahead or behind? Specifically, will the use of a residual valve affect the brake light pressure switch by not relieving the pressure enough and leaving the brake lights lit?

Ste14mi
November 13, 2013

Use with residual pressure valves What is the correct placement of residual pressure valves in conjunction with this product, ahead or behind? Specifically, will the use of a residual valve affect the brake light pressure switch by not relieving the pressure enough and leaving the brake lights lit?

Answers

November 14, 2013
Jason
For simplicity the residual valves can be located between the master cylinder and the proportioning block. It will not effect the brake light switch as it required more pressure than the residual valves offer. If unhandy in this configuration they can be put after the valve and you can plug one of the front brake ports and tee later to eliminate the need for two front valves.
1 answers

Usable with 4 wheel drum, disc/drum, and 4 wheel disc? Hello, I have a 1968 Ford F-250 2WD with 4 wheel drum brakes. I am redoing the brakes, and the distribution block may need to be replaced. I currently have 4 wheel drum brakes, but would like to add front disc brakes later, and maybe rear disc brakes after that. Is this adjustable block usable for all of these scenarios (4 wheel drum, front disc rear drum, 4 wheel disc)? If not, then which scenarios will it work for?

To3d
SeaTac, WA, USA
December 08, 2012

Usable with 4 wheel drum, disc/drum, and 4 wheel disc? Hello, I have a 1968 Ford F-250 2WD with 4 wheel drum brakes. I am redoing the brakes, and the distribution block may need to be replaced. I currently have 4 wheel drum brakes, but would like to add front disc brakes later, and maybe rear disc brakes after that. Is this adjustable block usable for all of these scenarios (4 wheel drum, front disc rear drum, 4 wheel disc)? If not, then which scenarios will it work for?

Answers

December 10, 2012
Jason
This will work with disc/drum, drum/drm or disc/disc applications
1 answers

hi,will this work for my disc in front and drum brakes in back or is this just for disc/disc set up?my calipers in front grab way to fast and almost throw you into the windshield,so im trying to get more back brakes working.thanks for your help

jeff
gladstone,michigan
December 07, 2011

hi,will this work for my disc in front and drum brakes in back or is this just for disc/disc set up?my calipers in front grab way to fast and almost throw you into the windshield,so im trying to get more back brakes working.thanks for your help

Answers

December 07, 2011
Zach
Speedway part number 83526011179. This adjustable proportioning valve is not intended to regulate front brake line pressure. This is meant for adjusting the REAR brake pressure. If you have overly sensitive front brakes, you may have the wrong master cylinder, or another problem resulting in to much line pressure. All adjustable proportioning valves are intended to regulate rear pressure to avoid locking up the rear brakes before the fronts.
1 answers

When bleeding the rear brakes should the prop valve be set for least pressure (all the way out, fully counter-clockwise) or most pressure (all the way in, fully clockwise)? does it even matter?

tr4boy
Rocklin, CA
May 06, 2015

When bleeding the rear brakes should the prop valve be set for least pressure (all the way out, fully counter-clockwise) or most pressure (all the way in, fully clockwise)? does it even matter?

Answers

May 07, 2015
Eric
Expert
You can leave the adjuster set at your normal setting for bleeding the brakes. If you have a new system and do not know where the knob is typically set at then bleed the brakes with it in the middle of the adjustment range.
1 answers

dear sir I purchased last year from i put this on my t bucket it has discs on front I am experiencing too much front brake and was wanting to clarify turning clockwise will reduce back brake and anti clockwise will increase back brake thankyou

joel
british columbia canada
June 06, 2015

dear sir I purchased last year from i put this on my t bucket it has discs on front I am experiencing too much front brake and was wanting to clarify turning clockwise will reduce back brake and anti clockwise will increase back brake thankyou

Answers

June 08, 2015
Eric
Expert
Turn the knob clockwise to increase the rear braking in order to match that of the front of your T bucket.
Page 1 of 1

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