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Big bolt front brake drums?
https://slantsix.org/forum/viewtopic.php?t=25455		 Page 3 of 3
Author:  DionR [ Thu Apr 23, 2009 8:50 am ]
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Quote:
Hard labor? You're supposed to bribe a guy with a lathe. That's a 6-pack job at the most.
:lol:

But I would have to know a guy with a lathe in order to be able to bribe him.

When I talked to a shop about parting them off and touching the snout to fit my 17" wheels, he wasn't much interested in it unless I cut the rotors off first. I have to admit, I kind of drug my feet on it because of that (didn't realize it was over a year of dragging them though :shock: ).

Oh well, I could use the weight loss, and all I spent on it was $2.25 for new hacksaw blade (cut the time on the second one in half). Out of pocket was still less than a six pack. :P
Author:  DionR [ Tue Dec 29, 2009 11:05 pm ]
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Finally got the hubs done.

Had the shop step the snout to match a Mustang hubs so they would match up to a Mustang rotor and wheel. In the end, the snout didn't need much, but I had it turned to 2.80" for about 1/4" from the wheel flange and then 2.78" from there up (this from memory, need to verify my numbers).

Also, had to step up to aftermarket MP wheel studs as I couldn't find anything OE that was long enough. The stock Mopar rotor/hub seems to be much thicker than any of the latter model hub flanges so everything was short.

Couldn't mock up my brake kit as I ran into an interference between the adapter and hub, so that will have to wait, but I was able to finally get the wheels off the ground and on the car. Not sure the 17x8 wheels are going to work in front though, they look awful tight. Didn't turn the wheels yet, so we will see. :shock:

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Author:  andyf [ Thu Dec 31, 2009 9:00 am ]
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You're reinventing the wheel but I suppose you know that already. DoctorDiff has a Mustang kit for Mopars. He has an aluminum hub that adapts the 13 inch Cobra rotor and caliper over to any disc brake knuckle. A 17 inch Mustang rim then slides on to complete the deal.
Author:  DionR [ Thu Dec 31, 2009 9:59 am ]
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Quote:
You're reinventing the wheel but I suppose you know that already.
<Sheepish>

Yah, I know I'm reinventing the wheel. Problem is, nobody wants to give the stuff away. I have no real budget, only what I can scrape up once in awhile or horde from the few parts I might sell. So, I have to do it the hard way.

Spent a lot of time looking at brake kits, and not just for Mopars, either. If cost had no bearing, I would be running your later Viper setup, but I can't wait until gas is outlawed before I can purchase it.

Priorities are such that I can't spend a great deal of money, so if I want to build a car, I have to do it as cost effective as possible. Such is life.
Author:  DionR [ Thu Dec 31, 2009 10:05 am ]
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Quote:
DoctorDiff has a Mustang kit for Mopars. He has an aluminum hub that adapts the 13 inch Cobra rotor and caliper over to any disc brake knuckle. A 17 inch Mustang rim then slides on to complete the deal.
Besides, I wanted something bigger than the PBR pad guided calipers. :D
Author:  2 Darts [ Fri Jan 01, 2010 12:48 am ]
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These probably don't exist, do they. I was thinking that after '73 drum brake cars had the big bolt pattern, my focus has always been on disks, so I didn't pay much attention. :oops:
Wrong-o. My 73 /6 drum car has the small bolt pattern hubs. From my reads on the subject, the 73 and later drum brake cars retained the SBP, however all came with RH thread studs.

IMHO Chrysler would have spent better money putting a 4½ bolt pattern on 13" wheels in 1959, than tooling up different stuff. (Turn of the mike, I'm getting off the soap box.)
Author:  dakight [ Fri Jan 01, 2010 3:34 am ]
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I've always been puzzled by that myself. And why @&#% did they put 6x 4 1/2 on the Dakota? Six lug setups aren't all that unusual, but the 4 1/2" bolt circle is, and it severly limits the choice of wheels.
Author:  andyf [ Fri Jan 01, 2010 9:22 am ]
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I'm sure these decisions made sense to some engineer at the time but in hindsight they appear to have been really stupid choices. It was really silly to have SBP and BBP on the A body cars. And I agree with the 6 x 4.5 pattern on the Dakota and Viper. That was just stupid.

My guess is that the engineering management at Chrysler wasn't too sharp. Engineers will always invent new stuff just for the sake of inventing so it is the managers who need to step in and force the engineers to stick with a plan. Getting a whole bunch of engineers to use common parts is a tough job. Kind of like herding cats.
Author:  DionR [ Fri Jan 01, 2010 10:45 am ]
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Just a guess, but I suspect the 7/16" studs were a cost savings measure for what was intended to be a light, low end vehicle. They probably never intended the car to have much horsepower, and never a big block, so why put big wheel studs on it.

On the Dakota, I read once, that they want to create some kind of seperation from the other small pickups, other than the size.
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