Mopar Rear 9 Inch Brake Question

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mathemagician

mathemagician

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Having trouble finding parts for the Mopar 9 inch brakes. Looking for the brake spreader bar (looks like it is also called a strut or lever) and other e-brake hardware. What else would fit?
 
Nothing that I know of. I have some, but they are in complete brake assemblies that I don't want to part out. The correct name is parking brake strut. That might aid you in finding them.
 
There were no hardware changes that create hard interchange barriers, and the changes were minor: a new type of self-adjuster for '69, a new type of shoe hold-down spring around '66 and then again around '86.

'86…? Yep, 9" rear drums on Dodge Dakota pickups through 2002, and Jeep Wranglers through '06. They were 9" × 2-1/2" versus the A-body 9" × 2", but the hardware interchanges, so that's probably going to be your best source of parts. Such as this Dorman strut. Doesn't look like the springs are included, but they're in the hardware kit.
 
The one possibility (and I'm not making any guarantees) that I can think of is that some Jeep Cherokees through 2001 and some Dodge Dakotas (4 cyl. versions with a 7.25 rear end) through about 1990 had 9" drum brakes in the rear.
Some of that hardware may work, especially if what you're looking for is for a later ('73-'76) A body. An earlier application may or may not work, you'll have to hit the boneyards and see if the parts are similar.
 
slantsixdan said:
There were no hardware changes that create hard interchange barriers, and the changes were minor: a new type of self-adjuster for '69, a new type of shoe hold-down spring around '66 and then again around '86.

'86…? Yep, 9" rear drums on Dodge Dakota pickups through 2002, and Jeep Wranglers through '06. They were 9" × 2-1/2" versus the A-body 9" × 2", but the hardware interchanges, so that's probably going to be your best source of parts. Such as this Dorman strut. Doesn't look like the springs are included, but they're in the hardware kit.
Click to expand...
I'm working off of memory here (which can be iffy nowadays), but I believe the E brake lever that he's looking for changed- didn't the early versions have a lever that pivoted on a pin that pressed into the upper part of the shoe, and later ones changed to a lever that pivoted on a tab that fit into a triangular slot in the upper shoe? That could negate the ability to use that part of the E brake mechanism; depending on the year vehicle he's dealing with.
 
Professor Fate said:
I'm working off of memory here (which can be iffy nowadays), but I believe the E brake lever that he's looking for changed
Click to expand...

You might well be right about that; it's at least 25 years since I put Dakota rear brake hardware on an A-body, and some of the parts might be no-go. But I also (foggily) recall some easy adaptations…might be that old shoes didn't have the triangular slot, but new ones (even the narrower A-body ones) did?
 
Part numbers listed below for Abodies
1966 thru 1976 Strut or Spreader bar 2781580
1966 thru early 1969 operating lever 2265360 right side and 2265361 left side
Late 1969 thru 1976 operating lever 3461698 right side and 3461699 left side
 
I didn't see this because it went to my spam folder... (thanks microsoft...)

This is perfect, everyone. Thank you for responding. I didn't realize the 90s Dakotas had 9" brakes too. I'll check into those. The vehicle is a '71 Dodge Dart. It originally had a slant six that someone replaced with a 318 a couple of decades ago.
 
mbaird said:
Cherokee rear discs are a fairly easy swap .
Click to expand...
Grand Cherokees.
XJ Cherokees never had rear discs.
Not trying to be picky, but two totally different platforms.
Kind of a moot point anyway, since they won't fit OP's '71 Dart (small bolt pattern and different axle flange offset).
 

Professor Fate said:
Grand Cherokees.
XJ Cherokees never had rear discs.
Not trying to be picky, but two totally different platforms.
Kind of a moot point anyway, since they won't fit OP's '71 Dart (small bolt pattern and different axle flange offset).
Click to expand...
I pulled mine off a Jeep but honestly couldn’t remember which one it was .
Never considered the offset difference but I shimmed mine to get proper caliper/rotor alignment .
 
Yes Australian Chryslers had 9 inch drums from the first model to the nearly last the last 2 year models could be either 9 or 10 inch for the heavy duty option
 
Put up an ad in the "Wanted" section. I'll bet someone here has what you need.
 
I have an aussie car
i used a mix of US and Australian parts to update my 9 inch australian rear brakes
used a bunch of photos and worked out scale using known dimensions to check.


i used post 73, shoe hold down pins (correct length), springs, and dished washers, used some washers on the back plate to make the holes for the early style square hook smaller,
US adjusters/auto adjust
US spring set
US brake shoes because I wanted some with the folded edge where they rub on the back plate

the struts were the only hard part, i didn't go for dakota parts.. as mine were fine

Australian suppliers also do an "auto adjuster delete" spring set, for the Valiant charger RTs and Pacers, which given the circuit racing intent of those cars, didn't want their brakes auto adjusted to the nth degree as they hurtled backwards across the in-field during an OFF... the coil of the spring that goes past the adjuster is narrower, in a different place and the connection hook is just a bit longer to stretch to the shoe rather than the ratchet for the adjuster. reproduction of Track Pack option parts. also finned drums in 4.5 PCD available if you have just won the lottery....


Dave
 
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