Hi Stephen,
Wish discs were that easy for Ram cars. Unfortunately, a proportioning valve doesn't fully take into consideration the different pressures required for disc vs drum. Getting the drums to bite will cause the discs to drag (resulting in a fire risk).
No manufacturer or engineer has been able to provide a viable, non intrusive workaround. Rich and I addressed this issue a few years ago and weren't able to identify a solution.
Best,
David
Dave, Rich
The 64 300 master cylinder (MC) is a single resevior, correct. That then supplies fluid going to and through the remote booster as a single line to a block of sorts(?). Then three (3) lines out from the block, two go to the front brakes, one line to both rears as a single line. The splitting of the flow essentially acts as a proportioning valve of sorts by reducing the brake flow/pressure to the brakes. 1/3 to each front brake, then the 1/3 to the rears is split 1/2 to each rear brake. I'm sure there is some physics involved but I hope you get my point. Going to Discs would have the same affect, the only consideration is the fluid volume required by the calipers delivered from the MC. My point is that the remote booster does "NOT" make a disc brake conversion impossible, just a little trickey, or is that "Trickier". IMHO.
Best Regards,
Stephen A. Noia
1-408-210-4736 cell
Hi Rich,
No OEM pro portioning valve on the '64. The remote booster makes disc brake conversions impossible. No manufacturers have been able to figure out a workaround.
David
I don’t believe there is a proportioning valve in our ’64 Ram K with the 3” rear drums & shoes. Not that it might not be a good idea. Anyone seen them on 300’s before 1999? Mine get a little grabby in a hard stop—to rear lockup. Not many hours on the new brakes yet.
The service manual indicates 3” drums and shoes on all ’64 300’s & NY’s. 2.5” rear drums on Newport only. Length and material of lining are different. Interesting footnote-Police car HD brakes are not self-adjusting.
The remote power brake booster on ram-engined cars makes disk brake conversion problematic.
Keep calm and 300 on.
Rich Barber
Brentwood, CA.
Remember when you add the extra stopping power with the 3" rear brakes shoes, you will need to adjust the proportioning valve for less stopping to the rear. I did a similar job on a Montego Cyclone, went from 2" to 2.5" shoes on the rear. I immediately had rear lock up on hard braking. A second thought, going to 3" rears, I assume your front are also 3", correct? Or, do you have disc brakes on the front? I would suggest going disc's all the way round, front and rear. The front are an easy change with several choices, all using stock Chrysler parts. The rear also can be done using the 74 Imperial Rear disc set up. Believe it or not, it bolts straight on to the 8.75 rear end from the 9.25 Imperial rear. I did this on my 66 Sport Fury Convertible, anyway Good luck with it all, any increase in "Brakes" is a Good Thing!
Best Regards,
Stephen A. Noia
1-408-210-4736 cell
Hello, all:
I converted the rear brakes on my "Knewport" to 3-inch rear brakes. What was needed to go from 2 1/2 inch to 3 inch drums and shoes are support plates that that can mount 3" shoes, hardware and a 3" brake drum. Mine works fine. Three-inch support plates drop back 1/2 inch to accommodate 3" drums on the axles.
Best,
Ron Kurtz
E #292
--------------------------------------------
On Sun, 8/9/15, 'Rich Barber' c300@xxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
Subject: RE: [Chrysler300] Brake shoe retainer/hold down spring - G
To: "'Ray Jones'" <1970hurst@xxxxxxxxx>, "'Rick Vitek'" <rpvitek@xxxxxxxxxxxxx>
Cc: "'Listsaver 300 Club'" <Chrysler300@xxxxxxxxxxxxxxx>
Date: Sunday, August 9, 2015, 8:32 PM
Be very
careful to get the parts for HD brakes as the wider rear
shoes may require different springs and nails. These may
be included under 300, wagon or HD suspension.
Rich in Brentwood with a 300 Ram K car having HD
brakes standard. 3” wide shoes & drums vs. 2 ½”
on most other ’64 Chryslers. Came to me with 2 ½” shoes
in the 3” drums. Worked OK, but t’warn’t right.
Shoe lining material and length on different ‘64’s were
different also, but that’s too much to ask.
From: Chrysler300@xxxxxxxxxxxxxxx
[mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Ray
Jones 1970hurst@xxxxxxxxx [Chrysler300]
Sent: Sunday, August 09, 2015 11:10
AM
To: Rick Vitek
<rpvitek@xxxxxxxxxxxxx>
Cc:
Listsaver 300 Club <Chrysler300@xxxxxxxxxxxxxxx>; Ray
Jones <1970hurst@xxxxxxxxx>
Subject: Re: [Chrysler300] Brake shoe
retainer/hold down spring - G Have you checked your local parts
house?This kinda thing is readily
available at any of the 4 parts houses here in
Mena.These springs, pins and cups are
generic, I believe, and fit thousands of
cars.Even if they don't have a kit
listed for your car, check what they have for
fit.I just bought kits for the rear of
my Hurst, and I'm sure the hold downs are the same as
any I have ever installed.The kits may differ due to the
other springs included, which may be different from model to
model, but the shoe hold down is the same.Ray On Sun, Aug 9, 2015 at 11:05
AM, 'Rick Vitek' rpvitek@xxxxxxxxxxxxx
[Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx>
wrote:
Looking for
the brake shoe retainer spring hardware (nail, 2 cups, coil
spring) for a G. Don't see it listed for this
application on internet searches. Does anyone know of a
source? I imagine this retainer length was used on other
applications and would be willing to get a hardware set for
that other application.
Thanks.
-- Ray Jones. Y'all
come on down an see us. Ya
hear?
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Hi Rich,
No OEM pro portioning valve on the '64. The remote booster makes disc brake conversions impossible. No manufacturers have been able to figure out a workaround.
David
I don’t believe there is a proportioning valve in our ’64 Ram K with the 3” rear drums & shoes. Not that it might not be a good idea. Anyone seen them on 300’s before 1999? Mine get a little grabby in a hard stop—to rear lockup. Not many hours on the new brakes yet.
The service manual indicates 3” drums and shoes on all ’64 300’s & NY’s. 2.5” rear drums on Newport only. Length and material of lining are different. Interesting footnote-Police car HD brakes are not self-adjusting.
The remote power brake booster on ram-engined cars makes disk brake conversion problematic.
Keep calm and 300 on.
Rich Barber
Brentwood, CA.
Remember when you add the extra stopping power with the 3" rear brakes shoes, you will need to adjust the proportioning valve for less stopping to the rear. I did a similar job on a Montego Cyclone, went from 2" to 2.5" shoes on the rear. I immediately had rear lock up on hard braking. A second thought, going to 3" rears, I assume your front are also 3", correct? Or, do you have disc brakes on the front? I would suggest going disc's all the way round, front and rear. The front are an easy change with several choices, all using stock Chrysler parts. The rear also can be done using the 74 Imperial Rear disc set up. Believe it or not, it bolts straight on to the 8.75 rear end from the 9.25 Imperial rear. I did this on my 66 Sport Fury Convertible, anyway Good luck with it all, any increase in "Brakes" is a Good Thing!
Best Regards,
Stephen A. Noia
1-408-210-4736 cell
Hello, all:
I converted the rear brakes on my "Knewport" to 3-inch rear brakes. What was needed to go from 2 1/2 inch to 3 inch drums and shoes are support plates that that can mount 3" shoes, hardware and a 3" brake drum. Mine works fine. Three-inch support plates drop back 1/2 inch to accommodate 3" drums on the axles.
Best,
Ron Kurtz
E #292
--------------------------------------------
On Sun, 8/9/15, 'Rich Barber' c300@xxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
Subject: RE: [Chrysler300] Brake shoe retainer/hold down spring - G
To: "'Ray Jones'" <1970hurst@xxxxxxxxx>, "'Rick Vitek'" <rpvitek@xxxxxxxxxxxxx>
Cc: "'Listsaver 300 Club'" <Chrysler300@xxxxxxxxxxxxxxx>
Date: Sunday, August 9, 2015, 8:32 PM
Be very
careful to get the parts for HD brakes as the wider rear
shoes may require different springs and nails. These may
be included under 300, wagon or HD suspension.
Rich in Brentwood with a 300 Ram K car having HD
brakes standard. 3” wide shoes & drums vs. 2 ½”
on most other ’64 Chryslers. Came to me with 2 ½” shoes
in the 3” drums. Worked OK, but t’warn’t right.
Shoe lining material and length on different ‘64’s were
different also, but that’s too much to ask.
From: Chrysler300@xxxxxxxxxxxxxxx
[mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of Ray
Jones 1970hurst@xxxxxxxxx [Chrysler300]
Sent: Sunday, August 09, 2015 11:10
AM
To: Rick Vitek
<rpvitek@xxxxxxxxxxxxx>
Cc:
Listsaver 300 Club <Chrysler300@xxxxxxxxxxxxxxx>; Ray
Jones <1970hurst@xxxxxxxxx>
Subject: Re: [Chrysler300] Brake shoe
retainer/hold down spring - G Have you checked your local parts
house?This kinda thing is readily
available at any of the 4 parts houses here in
Mena.These springs, pins and cups are
generic, I believe, and fit thousands of
cars.Even if they don't have a kit
listed for your car, check what they have for
fit.I just bought kits for the rear of
my Hurst, and I'm sure the hold downs are the same as
any I have ever installed.The kits may differ due to the
other springs included, which may be different from model to
model, but the shoe hold down is the same.Ray On Sun, Aug 9, 2015 at 11:05
AM, 'Rick Vitek' rpvitek@xxxxxxxxxxxxx
[Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx>
wrote:
Looking for
the brake shoe retainer spring hardware (nail, 2 cups, coil
spring) for a G. Don't see it listed for this
application on internet searches. Does anyone know of a
source? I imagine this retainer length was used on other
applications and would be willing to get a hardware set for
that other application.
Thanks.
-- Ray Jones. Y'all
come on down an see us. Ya
hear?
#yiv4715659165 #yiv4715659165 --
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marg
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