In need of Help..

[Space Coast Rodder]

Did the "Tri Fives" have self-adjusting brakes? Is it a Chevy RR or a 8 3/4" Mopar? What's the wheel bolt pattern? Can you take a pic of the pumpkin?

Finally managed to get some pics. Do these help or do you need different angles ?
http://i86.photobucket.com/albums/k81/SCRodder/IMG_2425_zpsg5ostdte.jpg

http://i86.photobucket.com/albums/k81/SCRodder/IMG_2424_zps4sur7avv.jpg

http://i86.photobucket.com/albums/k81/SCRodder/IMG_2423_zpsbv351l8v.jpg

http://i86.photobucket.com/albums/k81/SCRodder/IMG_2422_zpsv6tdqgyf.jpg

 

[Space Coast Rodder]

Did the "Tri Fives" have self-adjusting brakes? Is it a Chevy RR or a 8 3/4" Mopar? What's the wheel bolt pattern? Can you take a pic of the pumpkin?

Forgot to say the bolt pattern is 5 - 4 3/4"

 

[Space Coast Rodder]

This is a pic of my Master Cylinder.. It's 1" bore & the pedal has a 6 to 1 ratio....

 

[2old2fast]

Page 40s early 50s Chev and dodge used an MC frame mount w/ the integral pedal pivot , there may be others , that may be an olds or Pontiac rear as they were both popular for drag cars ( still are ) 4-3/4 is Chev. , Olds and Pontiac I thought were bigger (5 on 5.5 ??) Brakes look awfully big to be Chev. May be olds or Pontiac. With custom axles ??

 

[HenrysT]

I would say, 57-64 Pontiac/Olds. They have casting numbers # on the third member to tell which is which and the Poncho and Olds have different widths (brake drum to brake drum) as long as it wasn't modified.
1957-1964 Pontiac and Oldsmobile Rearends - Street Rodder Magazine
Fabcraft Metalworks seems to be the people to talk to about brakes?
https://fabcraftmetalworks.com/

 

[HenrysT]

I would try to up grade your M/C to a dual reservoir one, what bore size?? 1" - 7/8" ?

 

[Space Coast Rodder]

Page 40s early 50s Chev and dodge used an MC frame mount w/ the integral pedal pivot , there may be others , that may be an olds or Pontiac rear as they were both popular for drag cars ( still are ) 4-3/4 is Chev. , Olds and Pontiac I thought were bigger (5 on 5.5 ??) Brakes look awfully big to be Chev. May be olds or Pontiac. With custom axles ??

It certainly looks like Olds/Pontiac. I'm getting closer each day. Thanks for the help..

 

[Space Coast Rodder]

I would try to up grade your M/C to a dual reservoir one, what bore size?? 1" - 7/8" ?

Bore size is 1"...

 

[Space Coast Rodder]

I would say, 57-64 Pontiac/Olds. They have casting numbers # on the third member to tell which is which and the Poncho and Olds have different widths (brake drum to brake drum) as long as it wasn't modified.
1957-1964 Pontiac and Oldsmobile Rearends - Street Rodder Magazine
Fabcraft Metalworks seems to be the people to talk to about brakes?
https://fabcraftmetalworks.com/

This is great information.. I should be able to identify it from all this...

 

[Space Coast Rodder]

Finally got my brakes back together with new master cylinder & new rear wheel cylinders & all is working great.. Thanks to everyone for all the help...

 

[Indycars]

Can you tell if the brake pedal moves any further now with the smaller master cylinder? Theoretically it will have to travel further.

 

[choppedtop]

Indy, I went from a 1 1/8" to a 1" piston. My travel increased maybe an inch and a half. On the good side, I have much better stopping power now than before. No sorry at all for the change.

 

[Indycars]

Indy, I went from a 1 1/8" to a 1" piston. My travel increased maybe an inch and a half.

I don't have trouble locking mine, but the wife might have trouble. It would be nice if it was alittle easier, so hence my reason for asking how the pedal travel changed.

 

[choppedtop]

I know what you mean. I am pretty sure my wife would have had problems with my old set up. Mine would lock up, but it took a big boy leg to do it, not that I really want to lock them. They simply feel like I have more positive control now.

 

[HenrysT]

Finally got my brakes back together with new master cylinder & new rear wheel cylinders & all is working great.. Thanks to everyone for all the help...

Come on Dude Guy! What kind of new MC? Size? Did you get a new bracket/pedal for the MC?

 

[Space Coast Rodder]

Come on Dude Guy! What kind of new MC? Size? Did you get a new bracket/pedal for the MC?

I didn't change the master cyl bore size, It's still 1".. I did put on new wheel cylinders which had a very slightly bigger bore but the difference was minimal.. The rear shoes were put back together with a good cleaning, correct lubrication & correct adjustment & all works great.. Certainly not power brakes good but a vast improvement from before the work..

 

[Space Coast Rodder]

Can you tell if the brake pedal moves any further now with the smaller master cylinder? Theoretically it will have to travel further.

I didn't change the bore size, it's still 1".. I will change it down the line when I do the rear disc brake conversion..

 

[2old2fast]

Were you able to define what the rear came from, what MC did you use ?

 

[Space Coast Rodder]

Were you able to define what the rear came from, what MC did you use ?

It looks like the rear is from a 57 to 59 Oldsmobile, not sure what though.. I still don't know about the Master Cylinder, they were able to identify is from a number stamped on the side but couldn't tell me what it fitted... I'll be looking for another side mount but twin system with a 7/8" bore. Any ideas ??

 

[2old2fast]

Quick search didn't show anything but speedway lists some pedal/ MC mounts with cylinders that can bolt to the frame....