Re: Disc Brake Upgrade Reference Thread
It sounds to me like the valve inside the prop valve has slid over and blocked the rear port. There is a recent thread here on sliding the valve back and using the centering tool to hold it open until you get the system bled. I will see if I can find the thread.
Here is the thread: http://67-72chevytrucks.com/vboard/s...d.php?t=654567 |
Re: Disc Brake Upgrade Reference Thread
I was reading a post and I see where most people use the dual disc brake master cylinders. I also read where the difference in the two was the lines are reversed. Do I need to use this dual disc master or can I continue using my original? I'm not sure what to do.
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Re: Disc Brake Upgrade Reference Thread
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Re: Disc Brake Upgrade Reference Thread
Yes you should be running a disc/disc master cylinder such as the '77-'82 Corvette master. There are other disc/disc masters that will work, but the Corvette master is what most people use.
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Re: Disc Brake Upgrade Reference Thread
I just happen to have one and I will install it. I thank you for your information.
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Re: Disc Brake Upgrade Reference Thread
Can 4x4 spindles from 1990 using 1990 ball joints 2500 for 2wd application
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Re: Disc Brake Upgrade Reference Thread
I'm not sure just what you're asking?????
The K series spindles are different than the C series spindles. If you do some reading you will se that the '88-'98 spindles are no longer recommended for the 6 lug disc brake upgrade. Quote:
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Re: Disc Brake Upgrade Reference Thread
Thanks. There's a lot of 4x4 spindles in salvage yard.So the 6 lug 14mm not possible just put 1980 upper & lower control arm on65 1/2 ton know what direction to go was about to get drop spindles
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Re: Disc Brake Upgrade Reference Thread
Is there a 73-87 spindles that work with 6 lug 14mm rotors and camber adjustment
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Re: Disc Brake Upgrade Reference Thread
You do not have to change the control arms if you don't want to. At a minimum you will need to change the ball joints to accommodate the disc brake spindles. You can purchase aftermarket 6 lug rotors that will work with the '73-'87 spindles. The Factory '88-'98 LD2500 6 lug rotors will physically fir the '73-'87 spindles, but the caliper will not line up with the rotor.
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Re: Disc Brake Upgrade Reference Thread
If I missed this answer in the thread I appologize for re asking. I have a 65 C-10 that I am looking to do a 4 wheel disc brake swap on. I was wondering is there a way to apply 99-07 silverado brakes to the front. I have a 05 Silverado Z71 and recentley changed the front brakes and was looking at the rotor and caliper as a cheaper big brake kit for my 65. 12 or 13 rotors and dual piston caliper. I see that the ball joints are different orientation on the newer truck. Just thought I'd ask the collective mind here.
Thanks, Phil |
Re: Disc Brake Upgrade Reference Thread
Is there a fix for the caliper line up
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Re: Disc Brake Upgrade Reference Thread
Some machine work maybe, but that would amount to $$$. It would likely be cheaper to just purchase the aftermarket rotors.
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Re: Disc Brake Upgrade Reference Thread
I'm not familiar with the newer 2wd trucks as about 99% of them here are 4wd. That said, I'm thinking you may have to do something similar to what the guy in this thread did.
http://67-72chevytrucks.com/vboard/s...d.php?t=633734 But then maybe the 2wd's don't use the unit bearing hub? Quote:
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Re: Disc Brake Upgrade Reference Thread
For those of you interested in stock height spindle disc brakes with over the counter parts I had an 88-98 6lug rotor and bearings just to see what fits what and it would be possible to run this rotor with a machined bushing for the outer bearing and a fabrica
ted bracket for the caliper and to clarify although this rotor and bearings fit the 71-87 spindle the rotor disc itself sits .460 thousands further outboard than the correct 5 lug rotor. |
Re: Disc Brake Upgrade Reference Thread
I verified that a few years ago. A guy might be able to make the rotors work on CPP's modular spindles and fabricate a bracket to align the caliper with the rotor. But those are dropped spindles, not stock height.
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Re: Disc Brake Upgrade Reference Thread
Will the "spindle and just changing the ball joints" method work for a 63 c20? or will I need to go further with control arms and/or the whole cross member? Thanks for all the info so far!
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Re: Disc Brake Upgrade Reference Thread
I have not done this but another forum member claims that you can use the '73-'87 C20 lower balljoints on the '63-'66 C20 lower control arms if you open up the holes in the control arms slightly. Otherwise you will have to change the entire crossmember if you need to change the control arms.
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Re: Disc Brake Upgrade Reference Thread
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Just put what i think is an 86 xmember on my 66, down to putting the 86 drag link and tie rods on , if I understand correctly I have to drill new holes for the idler arm bracket. My question is how do I measure the frame to know where to drill? Thanks in advance!
Also, CapFab I am going to need one of those power steering adapters you make. |
Re: Disc Brake Upgrade Reference Thread
To find the location for the new idler arm, the draglink needs to be parallel to both the suspension crossmember and the bottom of the frame. This is of course with the opposite end connected to the pitman arm.
I will send you a PM with ordering and payment info. |
Re: Disc Brake Upgrade Reference Thread
I know it's been said a few times, but this is wonderful and I appreciate the time invested. My only question is whether or not $300 is a fair price for everything that's been listed that is needed from the donor truck? Lol. Thanks!
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Re: Disc Brake Upgrade Reference Thread
That is going to depend on the condition of the parts and if you are talking about rotor to rotor, all steering linkage and the steering box. Also prices vary a bit between different areas of the country. To me for it to be worth $300.00 all would need to be in decent condition.
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Re: Disc Brake Upgrade Reference Thread
I am still missing somewhere(or just understanding what i'm reading) in this thread about updating the rear to disc and 5 lug like the front. I've got my crayon and am ready to write it down. lol! I apologize, i've never attempted this type of mod before.
Oh and I'm gonna try and hold out for a newer front xmember. The guys parts were older and rough. Thanks! |
Re: Disc Brake Upgrade Reference Thread
If your truck currently has a 12 bolt, you can purchase 5 lug conversion axles and then one of the 3 rear disc brake conversion bracket sets that I make for the 5 x 5" wheel stud pattern. Another option would be to find a 12 bolt from a '71-'72 C10 which will be a direct bolt in, into a '63-'66 C10. The '63 & '64's will require a panhard bar modification. A third option is a '73-'82 12 bolt or '79-'86 10 bolt from a C10 or a '87-'91 10 bolt from a R1500. The '71-'91 differentials will be 1.5" wider than your current differential. My 5 x 5 rear disc brackets will work on any of the above.
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Re: Disc Brake Upgrade Reference Thread
Excellent!! That made it clear for me. Thanks again.
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Re: Disc Brake Upgrade Reference Thread
I forgot to mention that with the '63 & '64 12 bolts, you will need to change to 30 spline spider gears if you go with aftermarket conversion axles.
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Re: Disc Brake Upgrade Reference Thread
Got it. I assume neither is superior to the other, but more about what you can find and the shape it's in?
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Re: Disc Brake Upgrade Reference Thread
For most usage either a 10 bolt or 12 bolt will be fine. It's more of what you can find and it's condition.
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Re: Disc Brake Upgrade Reference Thread
Can anyone tell me I have a 67 c10 and it has two and a half inch drop spindles on it 6 lug I like to change it to 5 lug do I have to change the spindle as well or can I just buy a new hub
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Re: Disc Brake Upgrade Reference Thread
All you need is to go to your local auto parts supplier and get a pair of '73-'87 C10 1.25" thick rotors, bearings and seals..
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Re: Disc Brake Upgrade Reference Thread
Question, I have a 68 with 73+ HD disc conversion. Upper and lower control arms are still 68. I ordered the ECE drop kit with the73+ HD spindles. Do I use the 68 upper and lower ball joints?
Ive been reading like crazy trying to find out. TIA |
Re: Disc Brake Upgrade Reference Thread
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Re: Disc Brake Upgrade Reference Thread
That is correct. You need the '73-'87 balljoints for the '73-'87 spindles. You will also likely need to change your outer tierods.
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Re: Disc Brake Upgrade Reference Thread
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Re: Disc Brake Upgrade Reference Thread
I don't know about mixing and matching, but the entire '73-'87 steering linkage will bolt right up. That way the tierods fit the spindles and all the steering components are of the same vintage. That makes it easy when to remember when you need replacement parts later on.
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Re: Disc Brake Upgrade Reference Thread
I have a I believe 68 frame c 10 that im going to change the front suspension to an 86 front end. I purchased a front clip that has the power steering gear box and is complete hub to hub including the engine crossmember. It isn't the 1 1/4" rotors tho. Besides just bolting up all the new front suspension is there anything else I will need to do.
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Re: Disc Brake Upgrade Reference Thread
If you change the entire suspension, you will have to drill 1 hole on each side and elongate 1 hole on each side. The power steering box will bolt right up to a '68 C series frame. Then you will have to run new brake lines along with a proportioning valve and the correct master cylinder for a disc/drum brake system.
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Re: Disc Brake Upgrade Reference Thread
Thank you for the reply. I haven't done any searching thru this site, but does anyone sell a kit with all the nuts and bolts to install or have a link with all the fasteners to replace
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Re: Disc Brake Upgrade Reference Thread
I do not know of anyone that sells a bolt kit for this conversion. In the past I just reused the original fasteners. If you feel you need all new fasteners, you will simply have to make a list of what is needed and go down to your local fastener store or hardware store.
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Re: Disc Brake Upgrade Reference Thread
HI all I think I have things in order maybe not
I have the whole front crossmember brakes spindles , booster, etc from a 77 gmc sub 1/2 going to swap in to my 66 gmc 1/2. Its a 5 hole now but I want to go 6 like the 66. I Cant use the factory rotors from say a 90 c2500 because spindle diffrences or is that not so. So I have to get 73-87 3/4-1 ton lower control arms so I can use factory 88+ factory spindles, rotors and lower balljoint? Correct so far |
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