Car Code for Brakes

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charliec

charliec

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I'm looking at the '73 Shop Manual under disc brakes. The table listing the rotor thickness separates by car line. What is "R-W' and "B-J' in the table? Typically "W" is Challenger and "J" is Coronet/Charger. "R" is Windsor, "B" is Hamtramck. But the combination of letters is throwing me. Would they have used a different rotor spec for a disc brake on a Charger at the Hamtramck plant than one built in any other plant????:realcrazy:

1973_Dodge_Disc%20Brakes%20(2).pdf
 
charliec said:
I'm looking at the '73 Shop Manual under disc brakes. The table listing the rotor thickness separates by car line. What is "R-W' and "B-J' in the table? Typically "W" is Challenger and "J" is Coronet/Charger. "R" is Windsor, "B" is Hamtramck. But the combination of letters is throwing me. Would they have used a different rotor spec for a disc brake on a Charger at the Hamtramck plant than one built in any other plant????:realcrazy:

1973_Dodge_Disc%20Brakes%20(2).pdf
Click to expand...
Mattax said:
Look in the begining of the FSM for the codes and abbreviations, etc
Click to expand...
I did that. That's how I know that w is for challenger and j is for coronet/charger. But there is nothing that combines w and j with R and B.
 
charliec said:
I did that. That's how I know that w is for challenger and j is for coronet/charger. But there is nothing that combines w and j with R and B.
Click to expand...
Some years that happened with the sister brands.

'73 parts book is more complete
upload_2022-6-27_21-11-59.png


than the Dodge Chassis and Body book abbreviations
upload_2022-6-27_21-14-21.png

J is a Challenger
B always was Barracuda even when it was an A body
etc
 
charliec said:
I'm looking at the '73 Shop Manual under disc brakes. The table listing the rotor thickness separates by car line. What is "R-W' and "B-J' in the table? Typically "W" is Challenger and "J" is Coronet/Charger. "R" is Windsor, "B" is Hamtramck. But the combination of letters is throwing me. Would they have used a different rotor spec for a disc brake on a Charger at the Hamtramck plant than one built in any other plant????:realcrazy:

1973_Dodge_Disc%20Brakes%20(2).pdf
Click to expand...
OK, now I think I can post all of the attachments to illustrate why I'm confused about this and why it matters to me. I'm trying to get the front suspension/brakes correct for the '73 duster. I don't have a Plymouth Service Manual, but I do have the downloaded version of the Dodge Manual. The front suspensions should be the same for the Duster and the Dart, so I want to follow the instructions for the Dart in the manual.

In the intro section of the manual, there is a carline identifier. Here it is.
Carline Designation1024_1.jpg


Caline designations are L(Dart), J (Challenger), W (Coronet/Charger), and D (Polara/Monaco). So far, so good.

Now, I go to the Torsion Bar section. This is it.
torsion bar procedure1024_1.jpg
torsion bar procedure1024_2.jpg


This section purports to cover P,D,C, Y and R carlines. There are NO P,C, Y or R carlines in the carline table above. Moreover, there is no instruction for torsion bars for the Dart (L carline).

Aside from the confusion in the service procedures due to this, I have another reason for wanting to nail this down. Go to the Brakes Division of the Service Manual section here.
1973_Dodge_Disc Brakes1024_1.jpg

At the top of this page, I want to find the correct front rotor thickness, minimum thickness, runout, etc for the Duster/Dart. Note that the manual gives specs for "R-W" and "B-J" carlines and "all except R-W and B-J". What the hell is R-W and B-J???

Maybe I'm just dense and my novice status is on display, but this make no sense to me.
 
charliec said:
OK, now I think I can post all of the attachments to illustrate why I'm confused about this and why it matters to me. I'm trying to get the front suspension/brakes correct for the '73 duster. I don't have a Plymouth Service Manual, but I do have the downloaded version of the Dodge Manual. The front suspensions should be the same for the Duster and the Dart, so I want to follow the instructions for the Dart in the manual.

In the intro section of the manual, there is a carline identifier. Here it is.
View attachment 1715948715

Caline designations are L(Dart), J (Challenger), W (Coronet/Charger), and D (Polara/Monaco). So far, so good.

Now, I go to the Torsion Bar section. This is it.
View attachment 1715948716 View attachment 1715948717

This section purports to cover P,D,C, Y and R carlines. There are NO P,C, Y or R carlines in the carline table above. Moreover, there is no instruction for torsion bars for the Dart (L carline).

Aside from the confusion in the service procedures due to this, I have another reason for wanting to nail this down. Go to the Brakes Division of the Service Manual section here.
View attachment 1715948718
At the top of this page, I want to find the correct front rotor thickness, minimum thickness, runout, etc for the Duster/Dart. Note that the manual gives specs for "R-W" and "B-J" carlines and "all except R-W and B-J". What the hell is R-W and B-J???

Maybe I'm just dense and my novice status is on display, but this make no sense to me.
Click to expand...
PS....Mattax did give me a clue above in that the Parts Manual for '73 is more complete in identifying carlines. Thanks for that. However, that doesn't help much when I'm trying to follow a procedure in a sevice manual and can't find the correct carline.
 
"R-W" and "B-J" carlines and "all except R-W and B-J". What the hell is R-W and B-J???
R-W = R-Satellite & W-Coronet/Charger
B-J = B-Barracuda & J-Challenger.

I'm not sure where the confusion is.


Alan
 
The '73 A-body stock rotors are the same for all '73-7 A, B, E, and F bodies. Even some early Cordoba/Diplomat, and Le Barons use that hub and rotor assy. The minimum thickness for the stock rotor is .940"
 
cudamark said:
The '73 A-body stock rotors are the same for all '73-7 A, B, E, and F bodies. Even some early Cordoba/Diplomat, and Le Barons use that hub and rotor assy. The minimum thickness for the stock rotor is .940"
Click to expand...
Thanks. I think I have it cleard up. The table above (Post #6) gave an original thickness of 1.250" and minimum thickness of 1.180" for "All except R-W and B-J Models". However, this is for Floating Caliper setups. The thicknesses are different (as you quoted) for Sliders.
 
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