Another drum to disc conversion question for the front page

[Catch_22]

I need to do a from drum to disc conversion on a 67 but to a 6 lug. I'm thinking I only need the spindle and outer rods from a local seller according to this guide:
http://67-72chevytrucks.com/vboard/s...68&postcount=4

Then picking up 6lug rotors, new calipers/pads, and possibly new ball joints as listed in that guide. I already have a new set but technically for a 67/68. Am I missing anything?

[Jurassic-1]

Originally Posted by Catch_22

I need to do a from drum to disc conversion on a 67 but to a 6 lug. I'm thinking I only need the spindle and outer rods from a local seller according to this guide:
http://67-72chevytrucks.com/vboard/s...68&postcount=4

Then picking up 6lug rotors, new calipers/pads, and possibly new ball joints as listed in that guide. I already have a new set but technically for a 67/68. Am I missing anything?

If it is a CPP or a similar one it should be all you need. The outer tie rods are a different size so that is what is supplied. The brake lined will fit the stock lines on the truck. You may or may not need to install a proportioning valve and possibly change the master cylinder. Not a very difficult project in any case.

[Catch_22]

Originally Posted by Jurassic-1

If it is a CPP or a similar one it should be all you need. The outer tie rods are a different size so that is what is supplied. The brake lined will fit the stock lines on the truck. You may or may not need to install a proportioning valve and possibly change the master cylinder. Not a very difficult project in any case.

They are not CPP they are from a 72 though.

http://67-72chevytrucks.com/vboard/s...d.php?t=531288

[lolife99]

Originally Posted by Catch_22

I need to do a from drum to disc conversion on a 67 but to a 6 lug. I'm thinking I only need the spindle and outer rods from a local seller according to this guide:
http://67-72chevytrucks.com/vboard/s...68&postcount=4

Then picking up 6lug rotors, new calipers/pads, and possibly new ball joints as listed in that guide. I already have a new set but technically for a 67/68. Am I missing anything?

Just buy the 63-70 conversion spindles.
Like I posted in that thread,...
2) 67-70 truck owners can now purchase "year specific" standard and drop spindles, from many aftermarket suspension vendors.
* No need to change ball joints.
* No need to change tie rod ends.
* These new "conversion disc brake spindles" are a true "bolt-on" mod to add disc brakes to your truck.

Like these:
http://www.performanceonline.com/196...dle-Set-16683/
$228.99 every day.

[Catch_22]

Originally Posted by lolife99

Just buy the 63-70 conversion spindles.
Like I posted in that thread,...
2) 67-70 truck owners can now purchase "year specific" standard and drop spindles, from many aftermarket suspension vendors.
* No need to change ball joints.
* No need to change tie rod ends.
* These new "conversion disc brake spindles" are a true "bolt-on" mod to add disc brakes to your truck.

Like these:
http://www.performanceonline.com/196...dle-Set-16683/
$228.99 every day.

This was one of my backup plans.

If I can help someone on the boards move parts and save money I would rather do that. IF I can. Naturally I don't want parts I can't use.

[lolife99]

They also have the 6-lug rotors you need,...
http://www.performanceonline.com/che...ersion-rotors/

[Catch_22]

Originally Posted by lolife99

They also have the 6-lug rotors you need,...
http://www.performanceonline.com/che...ersion-rotors/

These are what I had in mind to use on the 72 spindles.
There is a off chance I have 5 to 6 lug "adapters" on my truck. I bought it a few months back and am yet to pull off the wheels and look, but I recall the last owner saying something about having them converted with adapters at 100 foot pounds of torque etc etc.

I may reuse the adapters as I can get new 5 lug rotors for $33 each.

Like I said before though, IF it can be done this way.

[lolife99]

Using 72 spindles is going to require you to spend alot more money than using the 63-70 conversion spindles.
1) Ball joint change
2) Tie rod change.
3) Special tie rod adapter sleeve to convert 5/8" tie rods to 11/16" diameter tie rods.
$50-$60 a pair.

Good luck.
Let us know how it turns out.

[mrein3]

Don't forget your 6-lug stock wheels won't clear the calipers. 71-87 stock, 6-lug wheels off a 4x4 will.

[Catch_22]

Originally Posted by mrein3

Don't forget your 6-lug stock wheels won't clear the calipers. 71-87 stock, 6-lug wheels off a 4x4 will.

How can I identify these?

[OJ1988]

I figured my 1969 suspeension was all worn, so I upgraded to 73-87 spindles, a arms and tie rods.

What are the odds the a arm bushings, balljoints, tierods, etc.. on your 40+ year old truck are good?

I upgraded to the 73-87 stuff added new parts. I used the A arms, centerlink and spidles from the 73-87. Bigger a arms, bigger bushings, bigger ball joints. All good upgrades for a driver.

I used the CPP 6 lug rotors.

My stock 1969 steelies cleared the roter set up as well.

[lolife99]

Originally Posted by OJ1988

I figured my 1969 suspeension was all worn, so I upgraded to 73-87 spindles, a arms and tie rods.

What are the odds the a arm bushings, balljoints, tierods, etc.. on your 40+ year old truck are good?

I upgraded to the 73-87 stuff added new parts. I used the A arms, centerlink and spidles from the 73-87. Bigger a arms, bigger bushings, bigger ball joints. All good upgrades for a driver.

I used the CPP 6 lug rotors.

My stock 1969 steelies cleared the roter set up as well.

This is a great idea if you are replacing everything.
Especially if you can refurbish everything first and then just swap the part on a weekend.

I believe the pre-'71 steelies will work on the rotors,... its the calipers that cause the interference.
Got any pics of your steelies?

[OJ1988]

Originally Posted by lolife99

This is a great idea if you are replacing everything.
Especially if you can refurbish everything first and then just swap the part on a weekend.

I believe the pre-'71 steelies will work on the rotors,... its the calipers that cause the interference.
Got any pics of your steelies?

Yep. Here they are, factory 15", I am the Third owner of the truck, and can trace it back to day one, and am sure these are original wheels. They cleared, but I upgraded to the FJ's

[Rochlow]

My factory 69 6 lug wheels would not clear the caliper and would hit in certain spots. I had to run pre-71 wheels to clear the caliper.

[Catch_22]

Originally Posted by Rochlow

My factory 69 6 lug wheels would not clear the caliper and would hit in certain spots. I had to run pre-71 wheels to clear the caliper.

Pre or Post 71?

[Rochlow]

Originally Posted by Catch_22

Pre or Post 71?

Sorry, My bad.. I used 71-87 stock steel wheels.

The stock steel wheels can be identified by the nubs that hold the hubcaps on. Pre-71 used used 3 nubs, where the 71-87 used 4.

[67chevemall]

buy the cpp parts from summit racing it is cheaper and FREE shipping...stay away from CPP

you need the 63-70 spindles, 71-87 -- rotors, calipers, bearing seal kit. 1- 2psi check valve and the custom fittings for your master and port valve to put the valve inbetween. And remove the stock 10psi check valve from the master.

The oem wheels just touch the rim and you can grind a piece off the caliper(the brake pad really) for them to work or just get new rims.

[lolife99]

Originally Posted by 67chevemall

buy the cpp parts from summit racing it is cheaper and FREE shipping...stay away from CPP

you need the 63-70 spindles, 71-87 -- rotors, calipers, bearing seal kit. 1- 2psi check valve and the custom fittings for your master and port valve to put the valve inbetween. And remove the stock 10psi check valve from the master.

The oem wheels just touch the rim and you can grind a piece off the caliper(the brake pad really) for them to work or just get new rims.

I don't understand the check valves on a stock location master cylinder?
Run a disc/drum or disc/disc prop valve (or an after market adjustable prop valve),... and the correct disc brake master cylinder,... and you are good to go.

[67chevemall]

http://67-72chevytrucks.com/vboard/s...d.php?t=535189

[Catch_22]

This is frustrating. Now I have to consider the wheels I am restoring may not even fit the disc brake setup I want to install.

[67chevemall]

^ The upgrade to disc has many twists and turns...

[Catch_22]

I would buy a full kit, but spending $1300 on something that appears to run sub $300 just breaks my balls and my brain.

A puzzle is exactly what I didn't want. As an engineer I feel compelled to figure this out.

[67chevemall]

$219 spindle MAKE SURE YOU get the 63-70 one if you have stock ball joints(aka just took off the drum brakes)

$350 kit rotor cal/pads, bearings, seals, caps,nuts, 1-2psi check valve
$10 fittings for master

Got all the cpp stuff from Summit racing

bag it while your in there for sure
2- bags and 2 Schrader valves top plates and bottom cups, does the trick
*****************

[Catch_22]

Originally Posted by 67chevemall

$219 spindle MAKE SURE YOU get the 63-70 one if you have stock ball joints(aka just took off the drum brakes)

$350 kit rotor cal/pads, bearings, seals, caps,nuts, 1-2psi check valve
$10 fittings for master

Got all the cpp stuff from Summit racing

bag it while your in there for sure
2- bags and 2 Schrader valves top plates and bottom cups, does the trick
*****************

Will only the CPP kit rotor cal/pads, bearings, seals, etc fit the CPP spindles?

I can pick up Oreillys 1973 rotors and loaded calipers for $120. I'm sure bearings and seals would only be a few bucks more.

[Rochlow]

You can find the 6 lug 71-87 wheels relatively cheap. I bought 5 for about $200 shipped to me and turned around and sold two the day I got the 5 in.

I have one left if your interested. It would need to be sandblasted and painted.