Re: Disc Brake Upgrade Reference Thread
 

The C20 LCA has the correct size ball joint bore to accept the '88-'98 ball joint. The C10 LCA's do not.

Since you have read the later posts in this thread and also posted in FoMoCoguy's thread, I will assume that you understand that there has been a camber issue that some members have experience. None of those members have been back to update with what they have done.

If you do have those same issues, please do let us know what you do to correct the situation.

Re: Disc Brake Upgrade Reference Thread
 

I was kinda afraid of that. It will be a while before I am ready for the alignment stuff since I am still in the process of swapping my LS motor in. If I can't get a hold of the guys that have fixed it, I will see what I can come up with. It doesn't look incredibly bad by the naked eye, but it is a little difficult to tell. The ball joint on my LCAs seemed to fit the knuckle snug, but maybe I need to double check them.

James

Re: Disc Brake Upgrade Reference Thread
 

What lower ball joint are you currently using?

Re: Disc Brake Upgrade Reference Thread
 

I assume the factory C10. I didn't change the ball joints or control arms at all. Just unbolted the factory stuff and bolted up the 99 Express stuff.

James

Re: Disc Brake Upgrade Reference Thread
 

I would suggest double checking the fit on the lower ball joint. I suppose it is possible that the Express van spindles use a different lower balljoint.

Re: Disc Brake Upgrade Reference Thread
 

If I ever get some free time I will go back out there and check. Thanks for the assistance.

James

Re: Disc Brake Upgrade Reference Thread
 

I thought the same thing, so I looked it up. The Express and the 88-98 1/2 ton trucks use the same lower ball joint.

We be nice to get a few pics of the parts installed...

Re: Disc Brake Upgrade Reference Thread
 

Sorry for getting off track guys, but I am putting disc brakes on the rear of my 1985 Silverado and I have the Camaro calipers and the Impala rotors. My question is how do I hook up the E-Brakes? I have the Camaro brake cables, but they are the same lengths. Can someone help me with the hookup?
Thanks.

Re: Disc Brake Upgrade Reference Thread
 

So I assume that your '85 has a longer e-brake cable on the right side?

I do not have an answer for you since I am not familar with your year of truck. The '63-'72's have a different e-brake cable arrangement

You might get a better response if you have this post moved to either the Camaro caliper bracket for sale thread, the suspension section or the '73-'87 section of the forum.

Re: Disc Brake Upgrade Reference Thread
 

Thanks, I will go over to the Camaro caliper bracket for sale thread, the suspension section or the '73-'87 section of the forum.

Re: Disc Brake Upgrade Reference Thread
 

Silly question, but what is everyone doing for their brake lines? I am going to be making my own to replace all the old rusty lines, but I wanted to know if you guys did anything special, or if it is just a pretty straight-forward brake line fabrication?

James

Re: Disc Brake Upgrade Reference Thread
 

So could the ball joint hole in the c10 lca be enlarged to work?Would be a lot easyier than finding a c20 lca

Re: Disc Brake Upgrade Reference Thread
 

I am assuming you are thinking about the 6 lug disc conversion using the '88-'98 LD 2500 parts? If so, are you aware of the possible camber issues talked about above?

To answer your question. Most anything can be done if you want to spend the money to make it happed. I don't know if there is enough meat on the C10 LCA to be able to be machined out to accept the '88-'98 lower ball joint. If this is the route you want to go, I would consider having a ring machined and welded in as ChiefRocka did for his '62 Suburban before he changed direction. Here is a link:

http://www.67-72chevytrucks.com/vboa...=533641&page=6

Re: Disc Brake Upgrade Reference Thread
 

Thanks captain fab i think i will stick to the 73-87 spindle rotors and calipers since no one has posted back about how and if they addressed the caster and camber issues .Thanks for the info!

Turning Radius too short with 80s cross member swap?
 

65 Burb, PO did a cross-member swap from 1980-something truck.

Seems to hit the stops too soon, have to make 4-5 point turns getting in tight spots... Is this a known issue with this swap or do I look for something else that may not be quite right?

Also has 2" dropped spindles (believe they are McGaughys) and 2" drop springs on the front. Rear has 3" drop springs. It's a bit too low in the front relative to the rear.

Thx,
Roy

Re: Disc Brake Upgrade Reference Thread
 

Does it turn farther to the left than the right? If so a front end alignment should take care of that. How sharp/tight of a turn are you making that takes 4 or 5 points to make?

Re: Disc Brake Upgrade Reference Thread
 

I've noticed that some brands of drop spindles will increase your turning radius. I had a problem on a 93 C1500 that I had several years ago. It had a terrible turning radius compounded by it being an xcab. One of the spindles had a problem and the company wouldn't back up their product so I bought BellTech spindles because they do. When I installed them my turning radius was way better.

Re: Disc Brake Upgrade Reference Thread
 

well, now that you mention it, it does turns further right than left. I looked and found the left side hits the stop the right side does not. It's had an alignment since I bought it. The only issue they mentioned was the front was too low to align it right, so I dropped the back 3" then took it back... Sounds like a return trip to see if they can straighten it out and/or tell me why they couldn't fix it the 1st time...

Re: Disc Brake Upgrade Reference Thread
 

Is it to much or to little??? thinking about trying this.

Re: Disc Brake Upgrade Reference Thread
 

From what I can gather, it will have too much positive camber, i.e top of tire leaning out from the fender.

James

Re: Disc Brake Upgrade Reference Thread
 

I've got a whole 90's model truck and would really like to keep the six lugs. I'll start looking at what it might take to do it on my 65. Thanks

Re: Disc Brake Upgrade Reference Thread
 

I haven't had time to check into this any further, but going by what some of the others that have done this, either the top ball joint will have to move inward, or the lower outward. The lower could move outward easily by modifying a '73-'87 lower control arm as ChiefRocka did. I had originally planned on modifying a '73-'87 LAC to accept the larger balljoint anyway.

Here's the page of ChiefRocks's build thread that shows the LCA mod to accept the '88-'98 ball joint.

http://www.67-72chevytrucks.com/vboa...=533641&page=6

A while back I sent a PM to one of the originators of this conversion, but he did not remember having any alignment issues and had long since sold the truck.

Re: Disc Brake Upgrade Reference Thread
 

Where do I purchase the adapter sleeve to go from 69 to the 73-87....it was option #2 above

Re: Disc Brake Upgrade Reference Thread
 

The big vendors such as CPP, ECE and POL have them. But if you just change your entire steering linkage to the '73-'87 components, you don't need them. On a '67-'72 all that just bolts up.

Re: Disc Brake Upgrade Reference Thread
 

? Everything I read says if I use later I will have to drill several new holes. guy somewhere on this board says 1 of 3 options. Use adapter or rethread later tie rod end or use all later and drill new holes. Of course I think when I gut on the later spindles I thought they were just 71 so I think I got 71 upper and lower ball joints...Turns out its a 79 and not 71 and the ball joints still fit. I did this several years ago so I will have to go back to autozone and see what year ball joint I got for sure....Thanks, Rick

Re: Disc Brake Upgrade Reference Thread
 

Most of the discussion in this thread is in regards to the '60-'66's, which do require 2 new holes for the '73-'87 idler arm. The '67-'72 trucks do not require those 2 new holes since the diler arm is the same as the '73-'87's. Which ever year your spindles are, if you use that year of steering linkage, you do not need those adapter sleeves. The '71-'72 spindles use a different ball joint than the '73-'87. I believe it is the uper?

Re: Disc Brake Upgrade Reference Thread
 

Correct.
71-72 and 73-87 use the SAME lower balljoint.
Upper balljoint and tie rods are different.

Re: Disc Brake Upgrade Reference Thread
 

Ok, question? I purchased a 78 rolling chassis, 12 bolt 3.42 with the 1 1/4 rotors. For a Crossmember swap onto my 60 for the disc brakes and power steering.The PO stated it was a hydraboost steering box. What's the difference? What size and or style brake booster master cylinder do I need. What power steering pump do I need? Or does it make a difference. I know they went to metric in 76 on the steering box hose fittings.... Oh and Captainfab I'll need one of each of you brackets for my 60 I know I'll have to mod my 60 frame for the box mount. Do I need to run hydroboost or does the steering box care?

Re: Disc Brake Upgrade Reference Thread
 

The only difference in the steering with a hydroboost, is the power steering pump The pump will have 2 return lines into the reservoir. There is no difference whatsoever in the steering box with a hydroboost braking system.

For the master cylinder, I would just go to your local auto parts supplier and get a master for a '78 C10. That will bolt up to any of the boosters that are compatible with my booster bracket.

The pump will depend on whether you are running the hydroboost or not. The brackets will be dependant on your particular engine.

The Metric with O-ring hose fittings didn't start until right around 1980.

Re: Disc Brake Upgrade Reference Thread
 

I'm in so I don't have to search.GOOD info guys nice work!!!

Re: Disc Brake Upgrade Reference Thread
 

Me too. I had seen this thread once and could not find my way back to it. Now I'm in.
I am swapping in a complete crossmember and rearend from a donor 73-87 I had stashed as a parts truck for my 81 4X4.
Where is the best place to buy body bushings and moog parts for the frontend?

Re: Disc Brake Upgrade Reference Thread
 

Subscribing for later, thanks for all the info

Re: Disc Brake Upgrade Reference Thread
 

Will a 1990 2 wheel drive Suburban (still square body) front suspension/crossmember also bolt in to my 63 C-10 like an up to 87 crossmember will?
I have a 63 C-10, I would like to do the complete drivetrain swap with the up to 87 C-10 front suspension. I also want fuel injection. I found a 1990 2 wheel drive 1500 series Suburban donor with a 5.7 TBI, 700r4 overdrive trans, posi traction rear end. Seems like a great modern upgrade if the crossmember will fit. Thanks

Re: Disc Brake Upgrade Reference Thread
 

It will fit, grab the sway bar, too

Re: Disc Brake Upgrade Reference Thread
 

Thanks, Im looking at buying the whole Suburban for the suspension, EFI motor, Overdrive trans, rear end, steering box, brake booster/master, etc...

Re: Disc Brake Upgrade Reference Thread
 

Yes that will work. The '87-'91 R/V series Suburbans and Blazers are still square bodies, so they are basically the same as the '73-'86 C/K series trucks. Suburbans and 2wd K5 Blazers. That '90 Suburban will make a nice donor.

Re: Disc Brake Upgrade Reference Thread
 

i have a 98 c1500 and a 68 C20 im mid way through swapping the rear end (welding finished tonight) and waiting for the new lower ball joints to show up.. if i have read all of this correctly.. keeping the upper and lower control arms from the 68.. using the upper and lower balljoints from the 98.. things should work? uppers bolted right in.. lowers show up in the am.. as for tie rod ends ect.. im using the original center section with inner tierod end from 68 and outters from a 98.. these parts show up in the am.. and from what it looks like.. threading and rod size seems to be the same.. i think the connecting rods are from a 98.. and im going to have to cut about 3/4" off the tierod rod to make things short enough to fit.. if im missing anything please let me know... and pics will follow.. im not lowering anything.. really doing this to swap from 5.13 to 3.08 in the diff.. and from open to limited slip.. i gotta shorten the drive shaft about 2" still and figure out a U joint to connect the shaft to the rear end yoke..

Re: Disc Brake Upgrade Reference Thread
 

You must have missed the part where that conversion is no longer recommended due to alignment issues. The originators of that conversion don't recall any alignment issues, but everyone that has tried it in the past couple of years have.

Re: Disc Brake Upgrade Reference Thread
 

Alignment issues is putting it politely .. The front tires sit like a V.. Going to have to measure it up and find out how far and fab up a new upper control arm.. I don't think there is room to mod the current A arm to move the ball joint closer to the frame..

Anyone know if the earlier model trucks have the same ball joints and tierod ends?

Re: Disc Brake Upgrade Reference Thread
 

Captainfab, I have an issue with my rear disc brake conversion. I can not get enough fluid to the CAMARO brake calipers I have installed. I purchased a new proportioning valve and I am using the stock master cylinder. I get plenty of fluid to the original front calipers, but not the rear. I need help? Any suggestions? Thanks.