6 lug rotors on 71-87 c10 spindles

[Daniel 61 Apache]

First I just wanna say that this forum is awesome! I sometimes have to pry myself from the computer cause I can't stop reading! Right now I'm in the middle of doing a disc brake conversion on my 61 C10. I've got a cross member out of a 85 C10 with the 1 1/4" rotors as required. I'm keeping 6 lug wheels but was wanting to make sure that the 6 lug rotors I buy will work on the 85 C10 drop spindles.

So, has anyone bought 6 lug rotors and put them on a spindle from a 73-87 C10 spindle for your disc swap?

These are the two websites that have the 6 lug rotor for sale. I like the CPP rotors cause for some reason they are $50 cheaper for two.

CP4R6 6-lug Disc Brake Rotors, pair for $129.00 from Classic Performance

and

60-70 C-10 6 lug (1 1/4 thick) $89.00 each from Early Classic

[suicide 63]

I bought a set of cpp rotors and they fit great.I believe that they are 1 1/4INCH rotors ,so verify yours are the same thickness before you order.

[slepysal]

I got mine from magughys when you could buy direct, still havnt done the swap

[Daniel 61 Apache]

Originally Posted by suicide 63

I bought a set of cpp rotors and they fit great.I believe that they are 1 1/4INCH rotors ,so verify yours are the same thickness before you order.

Didn't your truck have 88-up spindles on it? I thought that the 73-87 spindles were different from the 88-up........

Originally Posted by slepysal

I got mine from magughys when you could buy direct, still havnt done the swap

What? I thought you already did yours? It's taken me forever to get around to even starting on mine.......6 months ago the gas prices made everything go on a budget.

[custom63]

I have front end from a 1980 truck and would like to do this same thing. I have heard that there might be some issues with these 6 lug rotors on drop spindles. But I cant see how that could be the case. Can anyone else shed some light on this?

[protrash64]

I am not an expert on these issues. I have done 2 trucks, each different, and had NO issues. Others that have had problems mite know more.

The lugs are not the issue, its the bearings and spindles. I BELIEVE there are not any differences on the use of either 6 or 5-lug rotors, as most companies offer the choice of lug pattern with their kits. I would GUESS that would mean the rest of the parts are the same. I would suggest getting on the phone or emailing to find out if the rotors use the same bearing set-up.


There are also issues involving the spindles and the balljoints, and what type or year of tie-rods. Thats a different story.

Let us know what you find out.....

[Daniel 61 Apache]

Well, I went ahead and bought some drop spindles and 6 luggers from CPP. I'll post the outcome soon.

[northern 85]

Yes let us know, i really like the 6 lug ralleys.What wheel are you going to use?

[slepysal]

What? I thought you already did yours? It's taken me forever to get around to even starting on mine.......6 months ago the gas prices made everything go on a budget.[/QUOTE]

No I have had a bad case of draging feet. I just did my power steering swap on Thanksgiving day weekend, and still am waiting to do the rearend swap as well as the disc brakes.
She stops good right know so it hasnt been a big issue, in fact I was thinking of just swaping to a dual master ( drum/drum) untill summer.
to take a line from animal house :
"Fat dumb and lazy is no way to go throgh life" .
But so far thats been me

[custom63]

Sent out an email to ECE and found out some good info. If you have changes out your front end to a newer 73-87 setup and want to keep the 6-lug style you can purchase the $89 ea. 6-lug rotors through ECE part #03-6370-6L - 60'-70' c-10 6-lug (1 1/4" thick) and everthing will work and if you want to add drop spindles they will work too. Part #911-7387HD - '73-'87 Heavy duty for 1 1/4" thick rotors (pair) $229.

Hope this helps

Daniel 61 keep us posted on how things go!

[Tx Firefighter]

I have 72 model drop spindles with 6 lug rotors from ECE. Straight on swap using stock bearings and seals.

[Daniel 61 Apache]

Originally Posted by slepysal

No I have had a bad case of draging feet. I just did my power steering swap on Thanksgiving day weekend, and still am waiting to do the rearend swap as well as the disc brakes.
She stops good right know so it hasnt been a big issue, in fact I was thinking of just swaping to a dual master ( drum/drum) untill summer.
to take a line from animal house :
"Fat dumb and lazy is no way to go throgh life" .
But so far thats been me

At least you got somewhere. I've been purchasing parts for over over a year now! I definitely have to get on the ball now though. I'm in the military and will be moving in June from Ohio to California so it HAS to be done by then. My only mode of transportation will be this and my motorcycle.

I'll be starting a build post on it once I make some forward progress. I know a lot of torsion bar guys would like to see some pics of the disc swap in particular.

Originally Posted by custom63

Sent out an email to ECE and found out some good info. If you have changes out your front end to a newer 73-87 setup and want to keep the 6-lug style you can purchase the $89 ea. 6-lug rotors through ECE part #03-6370-6L - 60'-70' c-10 6-lug (1 1/4" thick) and everthing will work and if you want to add drop spindles they will work too. Part #911-7387HD - '73-'87 Heavy duty for 1 1/4" thick rotors (pair) $229. Hope this helps Daniel 61 keep us posted on how things go!

Originally Posted by Tx Firefighter

I have 72 model drop spindles with 6 lug rotors from ECE. Straight on swap using stock bearings and seals.

Thanks guys, that's the good news I was hoping for. And FYI, CPP (www.classicperform.com) is waaaaaay cheaper. $130 for the pair.

[Daniel 61 Apache]

Originally Posted by northern 85

Yes let us know, i really like the 6 lug ralleys.What wheel are you going to use?

I'm gonna keep whats on it now. Eventually I want to swap to 5 lug and do something cool. But that's later on down the road after the twin turbo V8 swap........

[Cyclone]

Looks good, great brake info as well.
Where in Calif, what kind of bike?

[ol Curt]

Do the stock 6 lug steel wheels fit over the rotors, or do you have to go to a different wheel?

[Daniel 61 Apache]

Originally Posted by Cyclone

Looks good, great brake info as well.
Where in Calif, what kind of bike?

I'll be down south in 29 Palms....or 29 Stumps whichever you prefer. I was there in 1999 and had a blast so hopefully it'll be the same this time around. The bike is a Suzuki TL1000-R with a little bit of work. Here's a pic.

Originally Posted by ol Curt

Do the stock 6 lug steel wheels fit over the rotors, or do you have to go to a different wheel?

Crap......I hope so.

[custom63]

Thanks guys, that's the good news I was hoping for. And FYI, CPP (www.classicperform.com) is waaaaaay cheaper. $130 for the pair.[/QUOTE]

I know that CPP is cheaper but from what I have read on here from multiple threads is that......Well they are always messin up on orders and that their customer service is not the best. I am not here to try and rant about them, cuz from what I have scene is that they have some great stuff with good prices and I want to order my stuff from them. I just dont know from all the things I have read on here about them. Does anyone else have a better angle on them??

[Daniel 61 Apache]

I guess I will soon enough......(crosses fingers)

[protrash64]

The stuff I used on my 'burb was CPP. I order thru someone who deals with them. The only issue is slow delivery on one item. The parts were good.

You may have to do some very minor grinding on the spindle/caliper mounting spot on top to get clearance for your wheels. ......provided there are no backspace issues. I had 15's originally when I put the spindles on my truck and they fit with about 1/16th inch clearance....aftermaarket 15x8 aluminum.

[SCOTI]

Original 60's steel wheels will not work w/disc brakes because of caliper interference. The mid 70's 4x4 6-lug ralleys will work but they're not exactly stock enough for some looks/styles.

For a solid steel wheel that does fit dics brakes, you'll need to search for OE 4x4 blazer spares. They were solid steel wheels & the dog-dish style caps will snap right on. The one problem w/these wheels?? They're freakin hard to find in wrecking yards & swap meets.

[slepysal]

not the stumps, man I spent some time there and Yuma MCAS back in 82!

[Daniel 61 Apache]

Originally Posted by SCOTI

Original 60's steel wheels will not work w/disc brakes because of caliper interference. The mid 70's 4x4 6-lug ralleys will work but they're not exactly stock enough for some looks/styles.
For a solid steel wheel that does fit dics brakes, you'll need to search for OE 4x4 blazer spares. They were solid steel wheels & the dog-dish style caps will snap right on. The one problem w/these wheels?? They're freakin hard to find in wrecking yards & swap meets.

Crap......I guess it's time to look for some wheels then. Thanks for the info.

Originally Posted by slepysal

not the stumps, man I spent some time there and Yuma MCAS back in 82!

Good times huh?!

I'll make sure I take a trip to see you guys up north at a show or something. My wife's family is from Stockton/Lodi and I know that she'll want to visit "them".

[Daniel 61 Apache]

Well, there goes my plan. CPP says that the drop spindles I need for my swap are discontinued. I'm using a C20 crossmember and was going to use their C20-to-C10 conversion spindles.......Back to the drawing board.

[SCOTI]

Originally Posted by Daniel 61 Apache

Well, there goes my plan. CPP says that the drop spindles I need for my swap are discontinued. I'm using a C20 crossmember and was going to use their C20-to-C10 conversion spindles.......Back to the drawing board.

Why the C-20 c.member? What other parts are you planning to use w/it?

[Daniel 61 Apache]

C20 member cause that was the only one I could find around here. I've also got a set of RE7's for all four corners. But without this friggen crossmember situation figured out I'm stuck.

Damn this is frustrating. I can either swap the lower control arm for a C10 and the upper ball joint for a C10, but I could just go ahead and get the conversion spindle from ECE and save a few hundred bucks.......