More A body disc brake questions.
#123364
09/19/08 11:26 PM
09/19/08 11:26 PM
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Joined: Feb 2005
Posts: 1,320
Lees Summit, MO
BrianT
OP
pro stock
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OP
pro stock
Joined: Feb 2005
Posts: 1,320
Lees Summit, MO
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I plan on putting some disc brakes off of a 73 Dart onto my 67. I bought the upper control arms/spindle/caliper set up at a swap meet.
My questions concern the need for me to use a V-8 drop drag link. I plan on completely rebuilding my front suspension. My dart was originally a slant 6, with 9 inch drums. A guy I know has a "drop down" drag link, from a big block 68 Cuda that I can get pretty cheap.
To further complicate things, I want to buy some 67-72 lower control arms that have the factory sway bar tabs. Does anyone know what sway bar I would be able to run with these? If it is a stock 67-69 Dart V-8 sway bar, how hard are these to find?
All of this combining different years and different engines, is confusing even when you're doing the front suspension! Thanks for your replies.
1970 Duster 340 clone
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Re: More A body disc brake questions.
[Re: BrianT]
#123365
09/20/08 12:10 AM
09/20/08 12:10 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I'm assuming that you are dropping a V8 (BB  ) in your 67. Your /6 center steering link will work fine.
live every 24 hour block of time like it's your last day on earth
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Re: More A body disc brake questions.
[Re: nomore65BelvJim]
#123368
09/20/08 01:58 AM
09/20/08 01:58 AM
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Joined: Jan 2003
Posts: 27,480
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
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So Cal
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Quote:
I believe you should be able to just swap axles and drums, or have the ones on it now redrilled for the LBP. 
Are you saying swapping the 67 7.25 axles out for 73 up 7.25 axles and brakes? Are you sure you can do that. I ??think?? I read there might be an issue with that. I'd double check that unless you've done it before.
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Re: More A body disc brake questions.
[Re: autoxcuda]
#123370
09/20/08 02:31 AM
09/20/08 02:31 AM
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Joined: Dec 2003
Posts: 16,844
Phoenix - surface of the sun
nomore65BelvJim
I Live Here
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I Live Here
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Posts: 16,844
Phoenix - surface of the sun
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Quote:
Quote:
I believe you should be able to just swap axles and drums, or have the ones on it now redrilled for the LBP.
Are you saying swapping the 67 7.25 axles out for 73 up 7.25 axles and brakes? Are you sure you can do that. I ??think?? I read there might be an issue with that. I'd double check that unless you've done it before.
I was thinking just axles and drums. I've never done that swap, but I have had both units in pieces and dont remember noticing a difference in the axles. One was a 7-1/4 from a 68 Barracuda, the other was a 7-1/4 from a 75 Dart Sport. Have to check the tech archives and see if they show a difference.
If they cant be swapped, just have what you own redrilled.
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Re: More A body disc brake questions.
[Re: nomore65BelvJim]
#123371
09/20/08 02:42 AM
09/20/08 02:42 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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the bearing is different between BBP & SBP 7&1/4 axles. axles wont interchange.
live every 24 hour block of time like it's your last day on earth
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Re: More A body disc brake questions.
[Re: RapidRobert]
#123372
09/20/08 02:44 AM
09/20/08 02:44 AM
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Joined: Jan 2003
Posts: 27,480
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,480
So Cal
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Quote:
Quote:
Are you saying swapping the 67 7.25 axles out for 73 up 7.25 axles and brakes? Are you sure you can do that. ??
 wont go but you're talking about going to a SBP & BBB 8&3/4 aren't you.
Since Fab64 has a /6 I'm assuming he has a 7.25. Just curious if you could swap SBP 7.25 axle into a LBP 7.25 ??  
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Re: More A body disc brake questions.
[Re: autoxcuda]
#123376
09/20/08 08:36 AM
09/20/08 08:36 AM
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Joined: Feb 2005
Posts: 1,320
Lees Summit, MO
BrianT
OP
pro stock
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OP
pro stock
Joined: Feb 2005
Posts: 1,320
Lees Summit, MO
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Wow! My thread took a right turn there pretty quick.
Yes, I am converting to 11" brakes with Yukon axles. No it's not going to be a BB, just a little stroker. I thought that a big block drag link might be thicker or heavier than my little 6 cyl link.
My next question concerns the availability of a factory 67-72 sway bar. I found some nice lower control arms with the tabs, but have been told sway bars are pretty scarce, and that it's better just to go aftermarket.
1970 Duster 340 clone
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Re: More A body disc brake questions.
[Re: dmerc]
#123378
09/20/08 10:50 AM
09/20/08 10:50 AM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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yes the factory sway bars(67-72) are somewhat hard to come by. If you are not rebuilding your front end and or not changing the t bars you could use an aftermarket sway bar that bolts to the lower shock mounts with a 90 degree bracket. This would keep you from having to undo your front end to ch the LCA's & those LCA's are somewhat hard to come by $$$ so you wouldn't have any problem getting rid of them & you wouldn't have to realign. If you carefully measured your ride height before the /6 swap then cranked it back up to that dimention afterwards you're good.
live every 24 hour block of time like it's your last day on earth
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Re: More A body disc brake questions.
[Re: T2R9]
#123380
09/20/08 04:40 PM
09/20/08 04:40 PM
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Joined: Jan 2003
Posts: 27,480
So Cal
autoxcuda
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,480
So Cal
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Quote:
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Others might be able to help in the rear mount as I am not sure if switching the spindle sides works with the suspension geometry, that is why I left mine in front.
Just swap the spindles from side to side.
IMHO, the 67-72 A-body sway bar is easier or just as easy to find than the sway bar LCA's. People upgrade to thick front sway bars to that puts those on the used market.
If you want your sway bar to look stock with the stock k-member sway bar mounts, you need to get a used sway bar with those mounts still on it. They make a replacement poly insert mount, but they don't make the metal housing around it. And those housing do get smashed pretty good.
Next alternative for 67-72 A-body sway bar to k-member mounts are the adapter brackets Energy sells. Read this thread:
https://board.moparts.org/ubbthreads/show...rue#Post4656129
https://board.moparts.org/ubbthreads/show...rue#Post4608197
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Re: More A body disc brake questions.
[Re: autoxcuda]
#123381
09/20/08 06:31 PM
09/20/08 06:31 PM
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Joined: Mar 2005
Posts: 1,546
Seattle, WA
375inStroke
Special needs person
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Special needs person
Joined: Mar 2005
Posts: 1,546
Seattle, WA
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The earlier A-bodies had /6 and V8 drag links. '67 and later are all the same in their respective years. The '73 on drag links mount differently, but if you get the later pitman and idler arms, they will work on earlier years, except '67, which had a unique idler arm mount. The spindles will swap side to side if you want the calipers in the rear, but the brake line needs relocating, and you need to be very careful the hose won't overextend or kink. You can keep the calipers in front and get the later control arms with the tabs, weld on tabs in the later higher location, or use the bolt-on tab.
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