Disk conversion tech article amendment

[RegularGuy]

Although seemingly unnecessary, it may be beneficial to use the 2010-2011 master cylinder when performing a disk conversion.

My understanding of the situation, Ford created a seemingly identical MC (listed specs) with exception to part number and the rear port being larger. This indicates to me there is a difference in brake bias.

The conversion carried out without changing MC's allegedly does not produce excess rear ABS engagement which would suggest the brake bias is pushed towards the front.

I will be visiting the parts store at my next opportunity to confirm interchangeablity (ability to be mounted without modification) and will report back. In the meantime, I'd like to know what others think, if someone has attempted a 2010-2011 MC swap I'd love to hear about it

 

[85_Ranger4x4]

My stock MC was fine until I went to dual piston front calipers (which every Ranger after 1995 has), then I had really weak brakes until I went to a fullsize MC.

From what I understand generally if you have ABS (like on a later truck) you have enough MC to run rear disks.

What are the two part numbers? If they just changed the port that would be enough to change the number by itself.

 

[RegularGuy]

Went to the parts store today and unfortunately the 2010-2011 MC is a special order item. Looking at the instore photos meanwhile, everything appears to just bolt up.

The port which is different is for the rear brake line, it is a slightly larger diameter.

Going back to my theory, it would have cost Ford less money to continue using 'old stock' rather than create a new item for 2010. The port being different would appear to exist for the sake of keeping people from mixing up year ranges as it should be functionally the same.

This suggests to me that Ford put a different part number on the 2010-2011 than years prior for the purpose of brake bias... Weight distribution and tow ratings being the same as years prior, disk brakes would be the only contributing factor...

From all of this, it is now my belief there shouldn't be any problems during normal braking although during a panic stop and while towing, the front wheels will break traction too soon.
Additionally, at all times the front pads will be wearing prematurely

 

[sgtsandman]

Change ups by Ford is not a new thing. There was a time when you not only had to know the year but the month your Ford product was built or the part you get could be wrong.

 

[Dirtman]

When I worked at advance auto it was an art form to not get punched by a customer when they wanted certain parts for their ford because of how often they changed random parts for no reason. Getting the right part was an insane task involving an interrogation.

Customer - "I need a u-joint for a 92 ford f150"
Me - "2wd or 4wd"
Customer - "4wd"
Me - "front driveshaft, rear driveshaft, or front axle?"
Customer - "rear driveshaft"
Me - "Which engine?"
Customer - "5.0"
Me - "Automatic or manual?"
Customer - "Automatic, this is redicoulus"
Me - "Standard or extended cab?"
Customer - "extended cab, why does it freaking matter"
Me - "rear, center, or front joint on the shaft?"
Customer - "ALL OF THEM!"
Me - "what axle code?"
Customer - "I DONT $&$^$@ KNOW"
Me - "which transfer case?"
Customer - "IM GOING TO KILL YOU!"
Me - "whats the production date?"
Customer - "I'LL MURDER YOUR FAMILY!"
Me - "do you have the vin number?"
Customer - "IM SETTING THIS STORE ON FIRE!"
Me - "torches are in isle 4"