10.25 disks

[ANGELO]

I think i found my issue. Sounds like these trucks had a 10lbs residual valve on the master for the rear brake.
Is there a 2lbs one, or do i just do away with it all together?

 

[Snowracer]

I think i found my issue. Sounds like these trucks had a 10lbs residual valve on the master for the rear brake.
Is there a 2lbs one, or do i just do away with it all together?

Wilwood Disc Brakes

MasterCylinder No: 260-13783, master cylinders, aluminum tandem, combination remote, compact master cylinder, go-kart master cylinder, handle-bar master cylinder, rebuild kits, high volume, hvm master cylinder, tandem, bleeding kits

www.wilwood.com

 

[ANGELO]

having a hard time finding what thread the master cylinder is, to be able to use a universal one.
Any reason why i cant just gut this valve? why is having 2 psi necessary?

 

[Snowracer]

having a hard time finding what thread the master cylinder is, to be able to use a universal one.
Any reason why i cant just gut this valve? why is having 2 psi necessary?

in the past ive ran without one and just put a manual proportioning valve in line so can adjust it

 

[ANGELO]

Replace the brakes.
I pulled that spacer off my master to gut it. It's straight through. It's not a valve. Could the residual valve be elsewhere? The only other thing I see on the brake lines is the RABS

 

[M92PV4U]

Replace the brakes.
I pulled that spacer off my master to gut it. It's straight through. It's not a valve. Could the residual valve be elsewhere? The only other thing I see on the brake lines is the RABS

I think that it is located in the proportioning valve.

 

[reptillikus]

Replace the brakes.
I pulled that spacer off my master to gut it. It's straight through. It's not a valve. Could the residual valve be elsewhere? The only other thing I see on the brake lines is the RABS

You sure it's hollow?

The one on my 88 definitely had moving parts inside it.

maybe yours was already gutted??

 

[ANGELO]

You sure it's hollow?

The one on my 88 definitely had moving parts inside it.

maybe yours was already gutted??

Yeah I could see straight through it.
It was also one piece. Looks like yours is 2 piece.
So I wonder why Im only getting 10k miles. I thought the parking brake calipers were sticking, but these jb6 calipers got the same life as the eldorado

 

[Tiha]

Jack it up and spin the rear tires by hand, are they dragging?

I gutted the "valve" coming out of the master cylinder. I think I drilled out to match the front as well.

Went to a speed shop and got an inline residue valve like for race cars hoping it would help my pedal feel. It did not.

Do you have a rear abs valve or anything else in the line to the rear?

My experience will be different but I gave up on single piston calipers, just could not ever get them to work right or consistently.

 

[ANGELO]

Jack it up and spin the rear tires by hand, are they dragging?

I gutted the "valve" coming out of the master cylinder. I think I drilled out to match the front as well.

Went to a speed shop and got an inline residue valve like for race cars hoping it would help my pedal feel. It did not.

Do you have a rear abs valve or anything else in the line to the rear?

My experience will be different but I gave up on single piston calipers, just could not ever get them to work right or consistently.

my valve is already gutted apparently.
I have the RABS on the frame rail, its somewhat newer.
as much as a pain these have been, its still less of a pain then the drums

 

[Tiha]

my valve is already gutted apparently.
I have the RABS on the frame rail, its somewhat newer.
as much as a pain these have been, its still less of a pain then the drums

It took a long time before I was happy with my setup.
I used e350 calipers. I think 1 1/8 inch bore master cylinder from a 99 expedition which had front and rear disc. Added hydroboost and upgraded ps pump. It stops as well and easily as any new truck now but like I said it was a long journey.