The Ford Barn

aztudor · 03-22-2013, 11:04 AM

To anyone else who may have some information /experience ( Mr Texas ??)

I have a 30 tudor with 40-48 brakes and a side mount single chamber MC that uses the existing brake shaft linkage. Not sure what it came off of, but it is not a 40-48 ford as it is side mount.
I am wanting to upgrade to a dual cylinder MC, I like the JEGS side mount, but they have two sizes 1 1/8 and 1 1/32.. The Orig MC was 1 1/16, so which one do you think would be the best for my braking system.
I know there will be a difference in the brake feel/ travel between them.

I am also thinking of upgrading the fronts to 39 Lincoln from MT car products. Any information on picking a new MC would be appreciated.

thanks in advance

Jim Brierley · 03-22-2013, 11:12 AM

The original M/cyl. for those brakes was 1" in diameter so I would choose the smaller one. Your linkage will play a part in the leverage you have too. What diameter is the present cylinder, and how is the brake "feel". Use that as a guideline.

Terry, NJ · 03-22-2013, 11:49 AM

The diameter of the cylinders is 1''. I have two of these, one mounted and to be mounted. The Cyl. I'm referring to is the one Speedway motors sells for $36 ($59 SS. cyl) This can be found on Pg 2 of the 2012 street catalog. Google Speedway motors or call them at 800-979-0122. Very good people to deal with!
Terry

aztudor · 03-25-2013, 10:08 AM

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thanks for the information, I am not sure the size of my existing master cylinder, I can try to take a picture and post it. Probably 1 " or 1 1/16.
I appreciate the suggestions.

03-22-2013, 11:04 AM	#1
aztudor Junior Member Join Date: Feb 2013 Posts: 3	Hydraulic dual master cylinder upgrade on a Model A To anyone else who may have some information /experience ( Mr Texas ??) I have a 30 tudor with 40-48 brakes and a side mount single chamber MC that uses the existing brake shaft linkage. Not sure what it came off of, but it is not a 40-48 ford as it is side mount. I am wanting to upgrade to a dual cylinder MC, I like the JEGS side mount, but they have two sizes 1 1/8 and 1 1/32.. The Orig MC was 1 1/16, so which one do you think would be the best for my braking system. I know there will be a difference in the brake feel/ travel between them. I am also thinking of upgrading the fronts to 39 Lincoln from MT car products. Any information on picking a new MC would be appreciated. thanks in advance

03-22-2013, 11:12 AM	#2
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,088	Re: Hydraulic dual master cylinder upgrade on a Model A The original M/cyl. for those brakes was 1" in diameter so I would choose the smaller one. Your linkage will play a part in the leverage you have too. What diameter is the present cylinder, and how is the brake "feel". Use that as a guideline.

03-22-2013, 11:49 AM	#3
Terry, NJ Senior Member Join Date: May 2010 Location: Bucks Co, Pa Posts: 3,740	Re: Hydraulic dual master cylinder upgrade on a Model A The diameter of the cylinders is 1''. I have two of these, one mounted and to be mounted. The Cyl. I'm referring to is the one Speedway motors sells for $36 ($59 SS. cyl) This can be found on Pg 2 of the 2012 street catalog. Google Speedway motors or call them at 800-979-0122. Very good people to deal with! Terry

03-25-2013, 10:08 AM	#4
aztudor Junior Member Join Date: Feb 2013 Posts: 3	Re: Hydraulic dual master cylinder upgrade on a Model A Sponsored Links (Register now to hide all advertisements) thanks for the information, I am not sure the size of my existing master cylinder, I can try to take a picture and post it. Probably 1 " or 1 1/16. I appreciate the suggestions.