1970 4x4 Front end swap with 1979 Dana 60

[Moto_hero]

Hello all

I have searched in many places and can not find the information I am looking for so I hope this will help.

I have a 1970 250 4x4 with the standard closed knuckle low pinion 44 with drum breaks. I have a 79 high pinion Dana 60 with disk brakes and dual piston calipers that I am putting underneath. I understand that it will fit just fine and there will be some slight modification for some things. Not an issue. What I am having issues with is finding information as to the master cylinder, brake booster and proportioning valve. I know that at least the master cylinder and proportioning valve need to be changed out. My first question is do I need to change the brake booster or will the one that I have work fine? Secondly I have found several master cylinder/brake booster combinations for the dual piston setup online but they are all out of stock or discontinued and I have not been able to find the proportioning valve at all. Can anyone steer me in the right direction as to where I can find what I need and exactly what I need. I would be very appreciative with help filling in the gaps and tracking down needed items. Open to all thoughts.

Thanks in advance.

truck1.JPG

[1972hiboy]

The specific items you need for the swap is the master cylinder that is designed for disc/drum and prop valve. You could prob order a generic one thats adjustable from summit or some place of the likes or getting one from a 78-79 f250/350 would be dandy. Really the same goes for the master cylinder. just order one for a 79 f250.

[zainyD]

Just had to compliment you on the beautiful truck.

I would echo the advise that has already been given. Just run a m/c from a 79 F350. They were equipped with the same rear axle (D60) as you already have in your '70.