If running rotors & calipers(dual-pistons) from a '97 F350, on custom D60 axles, under a '94 YJ - what braking system would be recommended?  Or, could the stock system handle it?

The 'Four Wheeler' mag project Teal-J has Dynatracs under it - but I havent heard what the brakes are, or are like when used off-roading.  Anyone know?

Thanks.  

At very least you are going to need a new master cylinder to match the increases fluid flow requirements for front axle. If you upgrade the rear axle with brakes from same type vehicle then its master cylinder would be a good starting point.  

I dont care to piece together a braking system - instead of using Ford parts, I saw a unit by 'Master Power' for a YJ that has 9" dual-diaphragm booster, with 1-1/8" master (I think stock YJ is single-dia w/ 1" master) - does the MP unit sound capable?

Thanks.  

If you want to do it correctly, you need to increase the flow volume of master cylinder to equal the increased flow needed for brake calipers. If you want to get fairly close to doing it right, measure the size/volume of old caliper and the ratio between it and old master cylinder. Then the displacement of new calipers  and determine the increase in mater cylinder sized needed for same basic ratio (square surface area of old caliper piston to master cylinder vs new combo) It is not about getting a dual booster, it is about getting the correct flow of fluid to match increased displacement. Also it is a bit strange that you said you do not want to use a pieced together brake system when you already have by choice when you swapped in Ford calipers because when you did that you created the need to piece it together further.  Also unless you increase the rear brake wheel cylinders and brakes you may have a very hard time finding a proper master cylinder that will proportion flow correctly for brakes to be properly balanced front to rear. This balance is achieved with proper master cylinder displacements and flow rates.  

Email Robin or PM 'Stover' on here. He will be able to tell you what he did with Teal's brakes.  

By 'pieced together' I meant I didnt want to have to roam thru a junkyard, or even a catalog, to find near compatible components, and then have to grind, cut & weld to get things to fit and work.  I would like to do the brakes correctly, but dont think thats possible since theres no 'old vehicle' to measure from.  The custom axle builder offered these calipers as an option (their best), and the axles are being built as we speak.  I would like to use the booster & master that went with these calipers, but my luck is it wont fit under the hood, or theres some other issue with them.  Which is why I mentioned 'Master Power' - they say their unit bolts directly onto my YJ, doubles the line pressure, and provides 50% more power.  I was hoping to just over-kill with some easy bolt-on upgrade, and know that things would work since it was over-kill.  This YJ is going to be 98% off-road driven, so I dont know if getting a proportional split is all that important - I would be happy with a single brake-pedal push that locks-up all 4 tires on a hill-side.  I thank you for your help with this - I was hoping to find someone that knew more about breaks than slapping on a booster/master(like me).  So, if this wont see hardly any pavement, is there some easy, acceptable solution.  Thanks again.

I will be talking to Robin too.  

This is just a thought but Jeep made a 3/4 ton truck thru 89 and you might check if it would be possible to retrofit/adapt the master cylinder for a J20 into your Jeep because it would have larger bores in Master cylinder and may have simular bolt pattern too. I have a 79 J20 that I have had for 22 years now and it has a GM style master and booster on it from factory.