rear brake swap 9 to 10 inch

[wmcclay]

I was wondering if a 9 inch to 10 inch conversion is a bolt and go? Master cylinders the same? I have found a set of 10 inch assemblys backing plate out of a 1994 super cab. I want to install them on a 1944 2wd std cab 2.3

[TRUNK_MONKEY]

dont know for sure,but should be the same.the bolt pattern on the axle housing will be the key. the truck,master cylinder etc should be good to go.

[baddis]

didn't know there was a 2.3 in 1944

[projectnitemare]

The backing plates are good to go, as long as they were off a 7.5 or a 28 spline 8.8. You will need different wheel cylinders. Do you have all the parts or just the backing plates? You will need the little metal bar that spans the shoes for the 10in drum as well. Other than a hardware kit and the adjusters I don't believe any of the parts interchage. The fittings are the same, you'll be fine with everything else on the truck from the lines on up.

Matt

[wmcclay]

Thanks for all your input, and it is a 1994, I have complete assemblys from a 7.5

[AllanD]

Yes, they are bolt and go.

But I'd recommend NEW wheel cylinders, the 10" brakes use a different bore diameter
cylinder than your 9" originals.



AD

[michowski]

Im debating about doing this brake swap also. What exactly do you need to change over from the 9 to the 10? Obviously drums, pads. My plan is to just buy everything new.

[AllanD]

Getting "everything new" while not impractical might be expensive.

The backing plates off of a Ranger or Aerostar donor would be
a good start (early explorer backing plates won't work).

Also I STRONGLY recommend using '93-up Aerostar drums,
they are the 10" drums with fins and are FAR less prone to
cracking than the Ranger/Explorer or (early) Aerostar drums.

Oddly from some sources the Aerostar drums are cheaper...

the shoes, springs, adjuster drum, cable and guide as well as the parking
brake lever and strut are ALL available new, and likely in stock at any
chain auto parts store

BTW, my personal check on the condition of brake springs is to first look at them.
If the paint is all gone I think seriously about replacing them.
But If I'm feeling short on funds I drop them onto a concrete floor from 4-5feet
and listen to them. Compare an old spring with a new one and you'll understand...

New springs kinda "ring", and they bounce into the air, old crappy ones don't.

AllanD

[Jspafford]

But If I'm feeling short on funds I drop them onto a concrete floor from 4-5feet
and listen to them. Compare an old spring with a new one and you'll understand...

New springs kinda "ring", and they bounce into the air, old crappy ones don't.

AllanD

Hrm. Learn something new everyday.

For the price of a kit of hardware I usually replace then whenever I tear into the rear brakes.

Not that it matters, my self adjusters gave up a longgg time ago.