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Under-Dash Brake Pedal Assembly, Single Diaphragm

Specs
Material Type:
Steel
Sold in Quantity:
Each
Finish:
Painted
Diameter:
7.00
Bore Size:
1.00
Feed:
Dual
Outlet Fitting:
Front: 1/2"-20 IFF, Rear: 9/16"-18 IFF
Bolt Hole Pattern:
3.38" x 3.38"
Garage Sale:
No
Notes
Plugs included. Mounting bracket is 14" long and can be shortened if needed.
Under-Dash Brake Pedal Assembly, Single Diaphragm
Under-Dash Brake Pedal Assembly, Single Diaphragm
Under-Dash Brake Pedal Assembly, Single Diaphragm

Click image to enlarge

Details

Reviews

Q & A

What's in the Box

This universal bolt-on swing pedal assembly provides a secure way to mount the brake power booster and master cylinder on the firewall when upgrading brakes on a wide range of cars and trucks. Pedal bracket can be trimmed to fit your application and has holes to place pedal pivot point at 7", 8.5", 10", 11.5", or 13" from the firewall.

  • Includes a dual feed 1" bore master cylinder
  • Dual front outlets 1/2"-20 IFF
  • Dual rear outlets 9/16"-18 IFF
  • Plugs are included for un-used ports
  • Single diaphragm 7" booster

Booster Tech Tip (GIF)

Notes

  • Booster Bolt Pattern:  3-3/8" square

Customer Reviews

Rated 4.5 out of 5 by 10 reviewers.
RATING BREAKDOWN
10 reviews
5 Stars
8
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
1
RECOMMEND THIS PRODUCT:

peglegs
Verified Purchaser
Grants Pass, OR, USA
Product Rating

installed this in my 40 ihc

August 18, 2014
this unit as a whole was a super problem solver due to its compact design. i had to fab a bracket to attach the cab end to my dash & did not create a problem there actually i would have it that way to fit my application better. i am still in the fabrication phase of my hot rod & havent actually drove my rod it yet but the booster size, pedal postion worked out great & was able to adjust it very compfortable......the one & only problem that annoyed me was the sloppy side to side play in the pedal arm i changed the bolt to a metric, the supplied bolt was not, and was acceptable then. even though this bolt/bushing was a good engineering design it was really sloppy......i would defineatly use this combo again for price, quality, ease of installation & all-in-one set -up
Yes, I recommend this product.
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Jegan
Verified Purchaser
St. George, UT, USA
Product Rating

Just what I needed

May 03, 2014
I installed the brake pedal assembly on my 51 Plymouth. Due to the angle of my firewall I had to cut and weld the firewall to get a flat surface to mount the assembly. I then cut the brake pedal bracket to fit under my dash. I may lengthen and add a slight bend to the pedal arm in the future to get the perfect distance between the gas and brake pedal.
Pros:
  • good quality and price
Cons:
  • like most universal items some modifications may
Yes, I recommend this product.
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Oldhotrod30
East Alton, IL, USA
Product Rating

works great

September 03, 2013
I moved from a under floor power brake to this fire wall mount. I should have done this sooner,it was that easy. The only neg is where is no pedal stop or stop light switch bracket. Easy to fix.
Yes, I recommend this product.
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Snooks
Verified Purchaser
Dale,Texas
Product Rating

had to use a fire wall unit

July 13, 2012
I had to go with the fire wall unit the under the floor unit was in the way I'm putting an automatic transmission in the car and this unit solved my problems with the linkage to the transmission.
Pros:
  • Versatile
Yes, I recommend this product.
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fuelman
Verified Purchaser
minnesota
Product Rating

strong and what i needed

May 01, 2012
everything was perfect
Pros:
  • Easy To Use
  • Versatile
  • High-Performance
  • Lightweight
  • Durable
Yes, I recommend this product.
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motzbigr
Verified Purchaser
Michigan
Product Rating

Looks great, won't be put on 'til Spring

January 27, 2012
Timely delivery, well packed
Yes, I recommend this product.
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retiredave
Verified Purchaser
Product Rating

highly recommend this product

March 24, 2015
very easy to install and adapt to most any vehicle
Pros:
  • Very Well made
Cons:
  • None
Yes, I recommend this product.
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catfishcuz
Verified Purchaser
Product Rating

No nuts

October 25, 2014
A complete kit master cylinder, power booster and brake pedal and no nuts to put it together guess I,ll have to carry the whole works to auto parts store and buy nuts.
No, I would not recommend this product.
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Jegan
Verified Purchaser
St. George, UT, USA
Product Rating

Just what I needed

May 03, 2014
I installed the brake pedal assembly on my 51 Plymouth. Due to the angle of my firewall I had to cut and weld the firewall to get a flat surface to mount the assembly. I then cut the brake pedal bracket to fit under my dash. I may lengthen and add a slight bend to the pedal arm in the future to get the perfect distance between the gas and brake pedal.
Pros:
  • good quality and price
Cons:
  • like most universal items some modifications may
Yes, I recommend this product.
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everett62
Verified Purchaser
Spokane, WA, USA
Product Rating

complete kit easy to install high qaulit

March 23, 2015
Was not sure brake kit would fit my application . But was delighted when it fit perfectly under the dash in my 52 chev deluxe. Had all the accessories to complete the job. I am totally happy with the kit. Thanks speedway
Pros:
  • Solid product
Cons:
  • be nice if it had a templatefor the bolt pattern
Yes, I recommend this product.
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Page 1 of 1
9106001

Product Q&A

19 questions : 25 answers

1 answers

does it matter which port is used for the front and rear brakes?

doug1
January 18, 2015

does it matter which port is used for the front and rear brakes?

Answers

January 19, 2015
EricM
Use the port closest to the booster for the front brakes and the port furthest from the booster for the rear brakes.
2 answers

will this work with disk front and drum rear brakes

doug1
January 18, 2015

will this work with disk front and drum rear brakes

Answers

March 24, 2015
everett62
yes
January 19, 2015
EricM
Yes this brake pedal assembly works well with front disc and rear drum brakes.
1 answers

brake pedal pad I have a 1948 Ford Pickup, this looks like the pedal pad from that vehicle, is it?

1948fool
January 09, 2015

brake pedal pad I have a 1948 Ford Pickup, this looks like the pedal pad from that vehicle, is it?

Answers

January 12, 2015
EricM
The pedal pad used on this kit is correct for many of the early vehicles, especially pickups. Part number 91031200 is a rubber pedal pad that has a ¼” NPT mounting stud on the back. We offer the weld bung that accepts that pad under number 6176702 if needed for welding to your pedal arm.
1 answers

Will I need residual valves with this setup ?

kretz
December 29, 2014

Will I need residual valves with this setup ?

Answers

December 29, 2014
EricM
For drum brakes we recommend always using a 10 psi residual valve no matter where the master cylinder is located. For using this with disc brakes residual valves shouldn't be needed since the master cylinder will be mounted higher than the calipers.
2 answers

Replacement master cyclinder? I bought this unit a year ago and it fit well for my application. However, fluid leaks from the top seal and I'm thinking of replacing the master cylinder as it won't bleed out. What year corvette master cylinders fit this unit? Thanks.

Jeepster
Vicksburg, MI 49097, USA
June 17, 2014

Replacement master cyclinder? I bought this unit a year ago and it fit well for my application. However, fluid leaks from the top seal and I'm thinking of replacing the master cylinder as it won't bleed out. What year corvette master cylinders fit this unit? Thanks.

Answers

August 19, 2014
peglegs
i think you'll find most m/c will fit what needs to be addressed is what brakes do you have ....drum/drum. disc/drum, disc/disc your m/c bore has to be sufficient for the combo u have.....did u bench bleed your m/c before installation?
June 18, 2014
EricM
Our GM Corvette style master cylinder mimicks the mid 70’s Corvette’s and has a 1” bore to work with disc/disc or disc/drum. The Vettes actually came with 1” and 1 1/8”. The 1 1/8” will put more fluid out for less pedal travel but will also increase the pedal pressure requirement in order to stop. Our master cylinder 91031440 is identical but it has 3/8"-24 outlets instead of the 1/2" and 9/16" that are provided on the master cylinder in this kit.
1 answers

Pedal Stop After a lot of searching, it looks like this unit will work the best for converting my 1940 Pontiac. And, experience has shown your products are all very high quality. I saw another person mentioning it lacked a "pedal stop" and brake lite switch mount. I can rig up a switch, but does it need to have some sort of stop make? Or, is there some sort of stop mechanism built into the master cylinder? And if I need to add a stop to this, how do I determine what/where it should be? Sure don't want to push the pedal too far and damage something. Thanks.

PonchoLarry
Bradenton, FL, USA
February 25, 2014

Pedal Stop After a lot of searching, it looks like this unit will work the best for converting my 1940 Pontiac. And, experience has shown your products are all very high quality. I saw another person mentioning it lacked a "pedal stop" and brake lite switch mount. I can rig up a switch, but does it need to have some sort of stop make? Or, is there some sort of stop mechanism built into the master cylinder? And if I need to add a stop to this, how do I determine what/where it should be? Sure don't want to push the pedal too far and damage something. Thanks.

Answers

February 26, 2014
EricM
You could add a pedal stop but it is not required. As long as you do not put excessive pressure on the pedal when fully compressed during the bleeding process then a pedal stop is not necessary. Once the system is bleed the pedal will never come close to the stop since the fluid pressure will keep the pedal from bottoming out anyhow.
2 answers

For use on "49" Ford Coupe Any concerns with mounting this to my firewall and support from the dash inside? Brakes are drum x 4

fordriving
Hendersonville, NC, USA
October 09, 2013

For use on "49" Ford Coupe Any concerns with mounting this to my firewall and support from the dash inside? Brakes are drum x 4

Answers

August 19, 2014
peglegs
you may have to fabricate additional bracktry to attach to your dash end as this is a universal fitment
October 10, 2013
Jason
Part number 9106001 which is the under dash brake pedal assembly is designed to mount to the firewall inside and the master and booster in the engine bay. The opposite end is shortened to mount to the dash itself. This unit will have sufficient support in mounting with that configuration.
2 answers

what is the total length? booster, master and bracket? I have about 9 inches under the dash, and was wondering how long the total package is, I can cut down the bracket if necessary.

studie
October 06, 2013

what is the total length? booster, master and bracket? I have about 9 inches under the dash, and was wondering how long the total package is, I can cut down the bracket if necessary.

Answers

August 19, 2014
peglegs
the main "u" shaped bracket from firewall to dash is 14" with an addtional flat piece that u can cut or shape it fits into predrilled holes
October 07, 2013
Jason
The under the dash pedal assembly is 26" overall in length. The mounting bracket is 14-1/8" long and can be shortened if needed, the master cylinder is 8-1/8" long and the booster is 3-3/4" thick.
2 answers

Adjustable Rod Adjustment Is there a certain procedure for adjustment of the push rod for the pedal to the booster.

rlb001
May 05, 2013

Adjustable Rod Adjustment Is there a certain procedure for adjustment of the push rod for the pedal to the booster.

Answers

August 20, 2014
peglegs
i would assume as long as your pedal's total travel doe's not bottom out, hit the floor, under extreme braking this pedal/bracketry has great adjustability for many applications
May 06, 2013
Jason
There needs to be freeplay on the pedal before it starts applying pressure to the booster and the suggested amount varies from ½ to 1”. There also needs to be clearance between the booster push rod or “spud” to the piston in the master cylinder. This needs to be 1/16 to 3/32” to allow the piston to come all the way back against the snap ring to avoid brake drag. There also needs to be 18-20” of vacuum to the booster and there needs to be a return spring on the pedal to keep it from jabbing the booster when the car hits a bump on the road.
1 answers

I'm looking at this for my 47 Lincoln Coupe with stock 47 Lincoln drums up front and 66 Fairlane drums on rear. Engine is a stock 350 Chevy. Car weight is approx 4000 lbs. Will the 910-6001 work or will I need the dual booster 910-6002? I can't use an under the car booster due to limited space.

ford84stepside
Berry, AL
May 04, 2013

I'm looking at this for my 47 Lincoln Coupe with stock 47 Lincoln drums up front and 66 Fairlane drums on rear. Engine is a stock 350 Chevy. Car weight is approx 4000 lbs. Will the 910-6001 work or will I need the dual booster 910-6002? I can't use an under the car booster due to limited space.

Answers

May 06, 2013
Jason
On vehicles weighing over 2800 pounds we recommend a dual diaphragm booster in kit number 9106002. For full power assist you will need 18-20 inches of vacuum available to the bosster.
Page 1 of 2

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(Part #91029975)
                        

This popular pedal mounts two brake master cylinders with a bias balance bar. The pedal features all aluminum frame and arm construction with steel pivots, mounting studs, and an anti-skid pedal pad. Wilwood's clevis and pivot pin balance bar provide smooth and accurate settings of the brake pedal bias. It can be set and locked down with the jam nut, or attached to a remote cable for quick on-track adjustments.

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Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection

Under-Dash Brake Pedal Assembly, Dual Diaphragm
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This universal bolt-on swing pedal assembly provides a secure way to mount the brake power booster and master cylinder on the firewall when upgrading brakes on a wide range of cars and trucks. Pedal bracket can be trimmed to fit your application and has holes to place pedal pivot point at 7", 8.5", 10", 11.5", or 13" from the firewall.

  • Includes a dual feed 1" bore master cylinder
  • Dual front outlets 1/2"-20 IFF
  • Dual rear outlets 9/16"-18 IFF
  • Plugs are included for un-used ports
  • Dual diaphragm 7" diameter booster
  • Pedal Length:  13-1/8" from pivot point to pad hole
  • Mount Bracket:  14" long
  • Booster Bolt Pattern:  3-3/8" square

Booster Tech Tip (GIF)

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Want to put a manual transmission in your street rod?  These universal pedal assemblies offer a clean, simple way to mount your brake master cylinder and hydraulic clutch master cylinder to the frame, under the floor.  Kits include a bracket and pedals, plus new brake and clutch master cylinders.  Power brake kit has a 7” brake booster and matching master cylinder.

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Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection.

 

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Brass adapters. Select from:

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