Disk to drum conversion

[5.0explorer]

Drum to disk conversion

I've got an 8.8 in the rear of my explorer that i'm converting from drum to disk brakes from a 98 mustang. My question is, is there any thing else that needs to be modified (referring to the rest of braking system: booster, master cylinder, etc.) when doing this swap? Thanks in advance for any input!

 

[Bart]

Usually you don't need to worry about any of that, but you may have to add a proportioning valve to the system. Are those brakes going to be big enough?

 

[5.0explorer]

As far as I can tell the rear disk setup (inc. size) is almost identical between the mustang gt and the later model explorers with factory disk brakes. I have also learned that the only other mod. to be done in this conversion is to adjust the rod between the booster and master cylinder out as the disk calipers move more fluid than the drums do.

 

[UNSTUCK]

Most drum set up's use a residual pressure check valve to hold the drum brakes ready. This is not needed and will cause your new disks to drag. The check valve is in the MC most of the time. But I'm not sure with the fords. I always suggest getting a MC that came from a car with disk/disk. You will be happy with an adjustable proportioning (sp?) valve, so you can dial in the pressure to the rear.

 

[5.0explorer]

Most drum set up's use a residual pressure check valve to hold the drum brakes ready. This is not needed and will cause your new disks to drag. The check valve is in the MC most of the time. But I'm not sure with the fords. I always suggest getting a MC that came from a car with disk/disk. You will be happy with an adjustable proportioning (sp?) valve, so you can dial in the pressure to the rear.

Thanks, I was not aware of this. I'll call the dealer and see if this is the case, and since they're usually less than helpful, i'll look into getting one from a newer model as well.