Djakken
Well-Known Member
I have set of four piston calipers from a Dart 65, also the spindels. In middle of rebuilding the calipers, and a question hit me. Do I need the upper control arms from the 65 aswell?
Disc Brake Conversion on Dart 63
- Thread starter Djakken
- Start date
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No, you don't.
stumper
Well-Known Member
When you get the work done can you post the full details of what all had to be done? I'm thinking of doing the same conversion on my 62' B Body, and looking for all the info I can find.
Use the 73-76 A Body Spindle, caliper, rotor, dust shield and proportioning valve (or adjustable valve for the rear). No need to change upper/lower control arms or ball joints (although while in there I would go new). I did this swap on a 69 Charger and worked great. The 73-76 A disc spindle is the same dimensionally as the 62-72 B Body drum stuff
PocketAces
Well-Known Member
I'm about to go down the same road on my 65 dart. Got my 4 piston setup off e-bay from a 72 dart. I've been reading up on this conversion and I've read that upper and lower control arms should stay in place. My understanding on the lower ball joint is that the bolts that attach the ball joint to the spindle are larger and use a heavy duty ball joint for disc brakes. But if the lower control arms don't change, then I'm assuming the ball joint shaft diameter remains the same. Can anyone confirm?
stumper
Well-Known Member
That's sort of what I thought I had heard that there were A & B body similarities that could be interchanged. Thanks for the tips.
Djakken
Well-Known Member
I have 9 inch drums on my 63, and I assumes your 65 has 10 inch drums.
The disk brake set i bought has lower control arms.
Tonight I will messure both arms, on my car and on the disk brake. I post the information as soon as I am done. In that case you will know the difference between 9 inch drums and disk.
guys the only part different from 62-70 valiants/darts is the lower ball joint--
not worried about what spindel arrangement(9",10" drum or disc)
k-7021 & 7023 for disc brakes
k 785 & 787 for drum brakes
I do not have specs on the units-- moog lists different numbers for disc vs drum is all
not worried about what spindel arrangement(9",10" drum or disc)
k-7021 & 7023 for disc brakes
k 785 & 787 for drum brakes
I do not have specs on the units-- moog lists different numbers for disc vs drum is all
PocketAces
Well-Known Member
Yes, I have 10" drums.
I'm curious what you're doing for master cylinder and booster. I'll try to upload a picture of what I have after the kiddies go to bed. Not sure how it will bolt up to the 65 brake pedal.
Djakken
Well-Known Member
I have a master cylinder coming from the same 65 Dart as the spindles, at least I think it does. No booster, I prefer manual brakes. Tried to get some information about this master cylinder based on the casting / part number, see pic. But I am not able to find anything useful on internet. Has you out there any knowledge or information?
Hopefully you can excuse the bad pic quality, I used my Iphone.
PocketAces
Well-Known Member
I took some pictures of mine which came off a 72. I didn't notice any numbers on the bottom of the master cylinder, but it's pretty cruddy. I'll look again tonight.
Do you think those disc brakes were original equipment on that 65 or perhaps maybe they were pulled off a later model car and put on the 65? I was reading the dealer information over at the Hamtrak Historical site and there is no mention of optional disc brakes on a 65. Some have asserted that they were dealer installed. Either way, I'm betting they were pretty rare in 65. The earlier master cylinders had a bolt on metal cap according to pictures I've seen. Does yours have unequal size reservoirs? I believe your proportioning valve looks like mine too.
I wasn't able to move my pedal linkage, so I separated the master cylinder from the booster. The master cylinder is free inside and seems to pump fluid. But I still can't move the pedal linkage. Maybe I'll get brave and open up the booster and look inside. I've never worked on one before.
PocketAces
Well-Known Member
Does one of your hubs have left handed threads on the wheel studs. Mine are right handed on both sides. I think the left handed threads were elminated after 1970. Of course they could have changed the studs.
Oklacarcollecto
Life is an experiment
Studs remained the same thru 1972. The left hand threaded ones have been oboslete for years. Like all obsolete parts go, they are high priced if you can even find them new. It took me a year to find some. I have seen them on eBay for $20 each. It is cheaper just to chane everything to right hand threads unless you want to stay correct like I do.
You will find that your lower ball joint looks identical for both the drum and disc brakes until you go to bolt on the spindles. The hole size in the ball joint for the bolt to attach the spindle is bigger and the bolt won't fit thru it.
i am a dumbass! i have four that i was about to give away!
Oklacarcollecto
Life is an experiment
Even the rights are $2.49 now. I stocked up on extras for both sides because when the rights go obsolete it will be real bad.
Djakken
Well-Known Member
I have eight left handed, see pic, and eight nuts. Do you need them? But remember these come out of a 63 with 9" drums, maybe you need different size for 10" drums. If you want them pm me and I send them for free. Maybe you can help in the future.
PocketAces
Well-Known Member
I have lefties on my 10" drums. What I need are lefties for my new kelsey hayes discs. Those are different. But thanks for the offer.
Djakken
Well-Known Member
Not sure if there were left handed on the 65 disc brakes. All studs, on both my discs, are stamped with an R, and are right handed. But of course, the discs can have a later date than 65.
And yes, Im sure disc brakes where an option 65. The Dart Charger had as standard equipment, correct me if Im wrong.
In 1965 the Kelsey Hayes disc brakes started out as a dealer installed option on the cars. I know at least the 65 Barracuda Formula S cars were, and probably for the other A bodys also.
Sometime during 1965 the disc brakes became a assembly line option, right from the factory.
But i don't have any clue when that date happened.
As far as the left hand threads on the studs goes, they were used on the disc brakes from 1965 - 1970, and then in 71-72 they were all right hand threads.
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