1970 C20 with disc brake conversion
 

My 70 was converted to disc before I owned it. Looking to lower it with springs soon. However I'm not sure what was changed to do the conversion and don't know what differences there are between 70 and 71 front suspension. I've been looking at coil springs and see they go to 1970 and then a different part number for 1971.... ????

Re: 1970 C20 with disc brake conversion
 

Any pics of your suspension that you could post?
A lot could have been changed over the years.

Re: 1970 C20 with disc brake conversion
 

No pictures at this time.

I know that the ball joints on later 72 and up are different in size. I'm just trying to figure out what differences there are with the coil springs. Eventually I may do dropped spindles and get the calipers out to make measurements.

Re: 1970 C20 with disc brake conversion
 

Coil springs from 63-72 will work in the rear.
63-87 front coil springs will interchange.