I need some help with an old Dodge truck.

That master mounts to bellhousing front side? Right beside starter?
My 1/2 ton is between steering box and transmission. No room for a dart master cylinder. I used a pt cruiser master. Jeep is the more common one used.
When i put the 360/727 in i used the pt brake booster and moved it up onto firewall.i need to change to adjustable proportioning valve to dial it in a little better but it stops good.