09 rear drum brake swap to OEM disc.

[RickSTL]

Has anyone swapped an 09 rear drum factory set up to factory rear discs and maintained functional ABS? The truck currently has a 7.5 rear end. It is my understanding Ford went exclusively to rear discs in 2010.

I would expect to change out brake hoses and lines at the new calipers and new emergency brake connections. Are there any other hardware changes needed such as the proportioning valve? Does the ECU need to be modified to accommodate the swap to discs?

Thank you for any information you can provide.

 

[RonD]

Read this article: https://www.therangerstation.com/tech/ford-ranger-bronco-ii-rear-disc-brake-conversion/

Can be done with 7.5" axles

Your 2009 just has the one ABS sensor on the rear differential to detect rear wheel lock up
And the 2009 4 wheel ABS unit just has that one sensor input for the rear axle, so not technically "4 wheel" ABS, lol

Switching to OEM 2010/11 rear axle, you would just hook up one wheel sensor to the 2009 4WABS unit

2010/11 also had traction control system to compliment the actual 4 wheel ABS system
So if you want the whole package then sell the 2009 and buy a 2011/11 Ranger

No, the computer(ECU) doesn't care about ABS

 

[RickSTL]

Read this article: https://www.therangerstation.com/tech/ford-ranger-bronco-ii-rear-disc-brake-conversion/

Can be done with 7.5" axles

Your 2009 just has the one ABS sensor on the rear differential to detect rear wheel lock up
And the 2009 4 wheel ABS unit just has that one sensor input for the rear axle, so not technically "4 wheel" ABS, lol

Switching to OEM 2010/11 rear axle, you would just hook up one wheel sensor to the 2009 4WABS unit

2010/11 also had traction control system to compliment the actual 4 wheel ABS system
So if you want the whole package then sell the 2009 and buy a 2011/11 Ranger

No, the computer(ECU) doesn't care about ABS

Thank you very much for the information. If I may ask further please; would what you say hold true if I upgraded to a 10.5" with posi?

 

[RickSTL]

My mistake, should be 8.8 with a positive. Very sorry

 

[RonD]

For what benefit?

Posi-traction is a GM name, Ford calls it Trac Lok, both are exactly the same method for limited slip, they use clutch packs in the differential
They are locked full time but are allowed to "slip" when going around a corner, so "limited slip"
Available for 7.5" or 8.8" axles

7.5" and 8.8" were both used for V8 power, in Mustangs and other ford cars
People tend to go to Explorer 8.8" rear axles because they had larger diameter axles and 31-spline, and also Disc Brakes
But not because of engine power, usually because of tire size, i.e. 33"+ size tires put a lot of strain on the axle shafts

Article on Explorer rear axle swap here: https://www.therangerstation.com/tech/ford-explorer-8-8-inch-rear-axle-swap/

EDIT:
Nevermind
10.5" would be hard to modify to a width that fit under a Ranger, and no benefit that I could see in a Ranger platform

 

[RickSTL]

For what benefit?

Posi-traction is a GM name, Ford calls it Trac Lok, both are exactly the same method for limited slip, they use clutch packs in the differential
They are locked full time but are allowed to "slip" when going around a corner, so "limited slip"
Available for 7.5" or 8.8" axles

7.5" and 8.8" were both used for V8 power, in Mustangs and other ford cars
People tend to go to Explorer 8.8" rear axles because they had larger diameter axles and 31-spline, and also Disc Brakes
But not because of engine power, usually because of tire size, i.e. 33"+ size tires put a lot of strain on the axle shafts

Article on Explorer rear axle swap here: https://www.therangerstation.com/tech/ford-explorer-8-8-inch-rear-axle-swap/

EDIT:
Nevermind
10.5" would be hard to modify to a width that fit under a Ranger, and no benefit that I could see in a Ranger platform

Thank you again for taking the time to reply. I appreciate the information.