big bolt patter conversion

[trbodrt]

I already have disc brakes on the front of my 72 dart but I want to convert to the big bolt pattern, I know i need upper control arms, spindles and calipers and rotors from the 73 dart donor car I have, can I use the proportion valve and brake booster/ master cylinder that is already in my 72 is the question.

 

[Keith Mopar]

I think you'll need the Divider block and prop valve from the donor 73 disc brake car.

 

[trbodrt]

okay, i guess it's easy enough to take the prop valve from the donor car, thanks

 

[crackedback]

you don't need the later prop valve if you already have KH 4 piston disc with that prop valve on the car.

The booster and master should work as well.

 

[Jim Lusk]

you don't need the later prop valve if you already have KH 4 piston disc with that prop valve on the car.

The booster and master should work as well.

Correct, but save the valve from the donor. Somebody will want it.

 

[trbodrt]

even better, I'll take as much off the car as I possibly can.

 

[crackedback]

Yep, grab the prop valve off the donor car.

Good call Jim.

 

[trbodrt]

Last question is do I also need to replace the lower ball joints?

 

[hemi71x]

Last question is do I also need to replace the lower ball joints?

Yes.