66 GMC C30 Disc Brakes?

[Captainfab]

Yes you can use C20 parts to convert to discs, if you just need single wheels. The balljoint hole in the LCA is the same for C20 and C30. When you switch to disc brakes, it is much easier to just switch the entire steering linkage as well. Then there is no need for swapping tierods around. You will just need to drill 2 holes to mount the later model idler arm. Another advantage is that when the time comes to replace parts, everything up front is the same vintage.

Originally Posted by Jimbo0076

I wonder if it would be the same to just swap from the ball joints out to disc brake parts and hammer down that way? Only problem would be having the tie rod adjusting sleeve to change from the inner to the newer style outer.