Switching to Kelsey Hayes setup

Vs29H1B said

The correct rear brake wheel cylinder must be used with the K-H discs to ensure that brake pressure proportioning is applied properly within the system, otherwise it is tricky to keep the rear brakes from prematurely locking up. This has been a common problem for guys that did the K-H conversions.

Click to expand...

No need to change wheel cyls, prop valves, lines , or other 'voodoo'
I did this swap circa '79... on a non -power system.

Need some special tools though, ... 1 sheet metal screw & #2 phillips
screwdriver.

1) insert sheet metal screw into line seat in M/C --- REAR (closest to firewall) 2 screwdrivers & pry seat out.
2) remove spring & residual check valve
3) Replace seat ( I used an old line fitting to 'tap' the seat back in.)

25 yrs later ... completely predictable braking --- up to but not
inclusive --- a 'buck 40'

Hope this makes sense , & apologies to the board for the rambling.