My 49 GMC was already modified to power front discs when I got it. The calipers were mounted in the front and after repairing/replacing all the older defective parts I decided to leave them as mounted.
The brakes work fine and don't pull. There are many OEM brake systems designed with the calipers mounted on the leading edge of front brakes.
Pic
Pic

Haven't dealt with a CPP kit so others will hopefully contribute.
Good luck
Dave


1949 Chevy 1/2-Ton 3100
1949 GMC 1/2-ton 100
In the Stovebolt Gallery
More pix on Photobucket
Video of the 216 running
Video of a Winter Cruise