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Brake Conversion Question
Posted: February 28, 2011, 10:28 pm
by noley99
Would a brake booster/MC off of a 97 ford truck work on a conversion to power brakes on my Uni?
Posted: February 28, 2011, 10:57 pm
by Greg D
Ashley,
if it bolts up it's possible that it would work on a Slick - maybe.
You would need to have the same brakes as the 97 though - either disc front or 4 wheel disc.
The Master Cylinder for disc brakes has a stepped bore - the "front" is bigger than the "rear" (although they are reversed on the master cylinder) - the calipers require more fluid than wheel cylinders.
If you are adding power brakes to a 4 wheel drum setup you'll need a drum/drum power brake master cylinder.
to have the system really work right you need to make sure the bores in the master and at the wheels match too.
Posted: March 1, 2011, 9:52 am
by noley99
Greg D wrote:Ashley,
if it bolts up it's possible that it would work on a Slick - maybe.
You would need to have the same brakes as the 97 though - either disc front or 4 wheel disc.
The Master Cylinder for disc brakes has a stepped bore - the "front" is bigger than the "rear" (although they are reversed on the master cylinder) - the calipers require more fluid than wheel cylinders.
If you are adding power brakes to a 4 wheel drum setup you'll need a drum/drum power brake master cylinder.
to have the system really work right you need to make sure the bores in the master and at the wheels match too.
Going with disc on the front and stock drums on the rear. I found this Booster/MC on CL for $50 and thought it might be worth a try. I think I may just order a new set up that I know will work and that will save me some hassle.
early I beam's spindle's
Posted: March 1, 2011, 10:11 am
by whomeian1
I have an early set of spindles .
The Q&A the back plate is Bell shaped , what year truck did thay fit ?
looking for rotor's & bearing's !
I Think Thay are before 73 , but i am not sure ?
Re: early I beam's spindle's
Posted: March 1, 2011, 8:12 pm
by noley99
whomeian1 wrote:I have an early set of spindles .
The Q&A the back plate is Bell shaped , what year truck did thay fit ?
looking for rotor's & bearing's !
I Think Thay are before 73 , but i am not sure ?
I think you meant this to be on another post
Posted: March 1, 2011, 8:49 pm
by whomeian1
Sorry i am one of the newbees !
Posted: March 1, 2011, 9:59 pm
by Greg D
whomeian1 wrote:Sorry i am one of the newbees !
Wouldn't matter anyway - Ashley has a straight axle truck.
Ashley,
Find out if that booster/MC is for a rear disc setup - if it is you don't want it.
If it's disc/drum see if you can find out the bore sizes to compare with the pieces you'll be using on the wheels of the truck.
I think I would find something from a 67-79 if it were me. Bore in the MC for those years will match the GM calipers you'll be using and the wheel cylinders on the rears.
I am not trying to rain on your parade - you want things to work together properly for your brakes.
I am a certified brake tech (I don't do it for a living anymore but), I won't even experiment too much.
Posted: March 1, 2011, 10:09 pm
by noley99
Greg D wrote:whomeian1 wrote:Sorry i am one of the newbees !
Wouldn't matter anyway - Ashley has a straight axle truck.
Ashley,
Find out if that booster/MC is for a rear disc setup - if it is you don't want it.
If it's disc/drum see if you can find out the bore sizes to compare with the pieces you'll be using on the wheels of the truck.
I think I would find something from a 67-79 if it were me. Bore in the MC for those years will match the GM calipers you'll be using and the wheel cylinders on the rears.
I am not trying to rain on your parade - you want things to work together properly for your brakes.
I am a certified brake tech (I don't do it for a living anymore but), I won't even experiment too much.
Thanks Greg, good advice... exactly what I was looking for. I've decided to just get the new set up. I have worked a deal out for about $180 to my door with proportioning valve.