For Those Doing Disk Brakes. 60-66

[1Bad62Pro/Street]

If Chevy trucks have even the slightest downfall worth noting, it's their lack of quality brakes. Although we as enthusiasts consider trucks as the primary vehicle of interest, it seems as though GM does not. until just recently, no light-duty Chevy truck came from the factory with four-wheel disc brakes. And before 1971, none of the GM truck line had disc brakes at all. This seems even stranger when you consider that trucks are heavy and often times extreme braking power is required to stop, especially when towing a trailer or driving a loaded truck. As consumers began latching onto the older Chevys, the need for improved braking became a reality. If you dump ten grand into a classic truck, you definitely want it to stop on demand. Prior to 1971 (First Year), all Chevy trucks came equipped with traditional drum brakes, forcing enthusiasts to seek out aftermarket disc brake conversion kits designed to work specifically with older trucks. This lack of factory brake options and performance was the founding force for Classic Performance Products, who have created a power disc brake line for nearly every popular model of Chevy car or truck, as well as most Ford applications, But with a heafty price $1,500 +/-. http://www.classicperform.com/6092chevtrk.htm When dealing with classic Chevys, more particularly, those from the 60s to the 80s, there more many unique applications which can be applied depending on the truck and the owner's specifications. Power brakes, disc/drum applications and bolt patterns are all elements that play a role in choosing the appropriate kit. I think...But don't hold me to it, A set of stock 73-87 chevy 1/2 ton pickup spindles might work for the conversion. Any 73-79 will work, 80-87 must have the 1-1/4" rotors. The 80-87 year spindles come with 1" rotors are 'light duty' and won't work with the 6-lug rotors. I hope the links below help. I'm not a expert just listen to fellas who have done this. If anything you may call CCP and ask for advice.
But I don't know If that will help....
I hope the links below help

http://67-72chevytrucks.com/vboard/s...d.php?t=209956

http://67-72chevytrucks.com/vboard/a...php/t-866.html

http://67-72chevytrucks.com/vboard/s....php?p=2652815

[joe231]

Originally Posted by 502tripower

1971 was the first year for disc brakes but they also were 5-lug.

That is what I was thinking, thanks

Originally Posted by 1Bad62Pro/Street

If Chevy trucks have even the slightest downfall worth noting, it's their lack of quality brakes. Although we as enthusiasts consider trucks as the primary vehicle of interest, it seems as though GM does not. until just recently, no light-duty Chevy truck came from the factory with four-wheel disc brakes. And before 1971, none of the GM truck line had disc brakes at all. This seems even stranger when you consider that trucks are heavy and often times extreme braking power is required to stop, especially when towing a trailer or driving a loaded truck. As consumers began latching onto the older Chevys, the need for improved braking became a reality. If you dump ten grand into a classic truck, you definitely want it to stop on demand. Prior to 1971 (First Year), all Chevy trucks came equipped with traditional drum brakes, forcing enthusiasts to seek out aftermarket disc brake conversion kits designed to work specifically with older trucks. This lack of factory brake options and performance was the founding force for Classic Performance Products, who have created a power disc brake line for nearly every popular model of Chevy car or truck, as well as most Ford applications, But with a heafty price $1,500 +/-. http://www.classicperform.com/6092chevtrk.htm When dealing with classic Chevys, more particularly, those from the 60s to the 80s, there more many unique applications which can be applied depending on the truck and the owner's specifications. Power brakes, disc/drum applications and bolt patterns are all elements that play a role in choosing the appropriate kit. I think...But don't hold me to it, A set of stock 73-87 chevy 1/2 ton pickup spindles might work for the conversion. Any 73-79 will work, 80-87 must have the 1-1/4" rotors. The 80-87 year spindles come with 1" rotors are 'light duty' and won't work with the 6-lug rotors. I hope the links below help. I'm not a expert just listen to fellas who have done this. If anything you may call CCP and ask for advice.
But I don't know If that will help....
I hope the links below help

http://67-72chevytrucks.com/vboard/s...d.php?t=209956

http://67-72chevytrucks.com/vboard/a...php/t-866.html

http://67-72chevytrucks.com/vboard/s....php?p=2652815

cool man! thanks for the info and links!

[aggie91]

joe231 - I think that you can do the 6-lug disc brakes with factory parts. I have not done it, but did some research on the parts. If you use a spindle that came with the 1 1/4" discs from any 1/2 ton truck from 73-86 and the rotor from a 1990-1994 3/4 ton chevy it should work. The 90-94 3/4 ton (C2500, 7200GVW) uses a 6 lug rotor. The bearings and inner seal are the same for that rotor and the 73-86 rotor. You will have to use the Caliper, hoses and Pads that match the spindle that you use.

The tie rods become an issue, but is easily solved using the Tie Rod adjusting sleeves that Fatman Fab sells (you will have to call them, they are not in thier catalog, there about $40). It uses you orginal OUTER tie rod end and the new INNER tie rod end and you use an OUTER tie rod end (as the new OUTER) from the same year at the spindle.

Let me know if this works for you.

[suicide 63]

Originally Posted by aggie91

joe231 - I think that you can do the 6-lug disc brakes with factory parts. I have not done it, but did some research on the parts. If you use a spindle that came with the 1 1/4" discs from any 1/2 ton truck from 73-86 and the rotor from a 1990-1994 3/4 ton chevy it should work. The 90-94 3/4 ton (C2500, 7200GVW) uses a 6 lug rotor. The bearings and inner seal are the same for that rotor and the 73-86 rotor. You will have to use the Caliper, hoses and Pads that match the spindle that you use.

The tie rods become an issue, but is easily solved using the Tie Rod adjusting sleeves that Fatman Fab sells (you will have to call them, they are not in thier catalog, there about $40). It uses you orginal OUTER tie rod end and the new INNER tie rod end and you use an OUTER tie rod end (as the new OUTER) from the same year at the spindle.

Let me know if this works for you.

I tried this very setup with no luck.It bearings and seals are the same and will fit on the spindle but when you go to put the brakes on no go.The races for the bearing are offset in a different spot so the rotor hits the outer brake pad by over a 1/4 inch.the only solution i could see would be grinding the mountg surface on the caliper and spindle down but i wasnt going to take the chance.Long story short I bought lug rotors from cpp for the same price autozones 88 up heavy half ton rotors cost.Now if you could use an 88 up spindle on our truck it might work.88 up trucks have a slight positive offset on their wheels I think this is why the 88 up rotors were futher out than 71-87 rotors.good luck