Anyone ever herd of putting an F-450 Master Cylinder on a 250 or 350 to give it a little more stopping power? I herd something about this the other day and was wondering if anyone has checked it out or done it.
Thanks
John

 

i've never looked into it. are the f-superduty cylinders different? i thought they were the same

 

Joe
F-SuperDuty's used a hydro boost system instead of a vacuum booster.

John
The hydro boost conversion has been done a number of times, you can also use the parts from the SD trucks

 

yeah i know about the hydro but he only talked of swapping master cylinders. are they different part numbers?

 

Yes they are different. Due to the F-SD having rear disc it has a different bore. A few have done just the master cylinder but the bolt spacing is different so they slotted the holes in the MC. I don't recall the results on the swap whether they liked it alot or just a little or not at all.

 

Thats what I herd. You have to waller out the holes on teh 450 MC and then it will go right in. I might look into it some more but the rear disc are stopping great now.( pics will be posted soon)

 

if the master cyl are differnt and the breaks are differnt you will have to swap the breaks as well