mr willy,
Thats what I am doing,
I am duplicating a brake system the same as a 1980's p30/chevy 3500 series truck
I swapped the rear axle to the p30 dana 80 drw with disk brakes.I installed front disk brakes by changing the spindles(griggs idea & sticky) so the last step is to install the hydroboost w/ mc out of the same vehicle.
I was originally looking to activate the hydroboost with a clutch slave but will use linkage instead.
