Question in Power Brake Boosters

[Duran75]

Will a 70 mopar c body power brake booster work in a 70 mopar b body.

C Body booster: Chrysler #18268
Bendix #12886

 

[Dragon Slayer]

What brakes. If you have the original KH front disc and rear drum, you want a Bendix dual diaphragm. Not as familiar with C body, but I think it is different, or at least the rear rod.

 

[Duran75]

I purchased parts from a site member. I bought a complete wilwood disk brakes kit for 70 b body ( not so complete). He sent me a rebuild the booster. He said the booster was out of this 71 Charger. Once I ran the part numbers, I found out the boost was out of a 71 c body. The site member still claim its out of a 71 Charger. With what you are telling me, this is not the correct booster of a b body. I’m converting my 70 Charger to disk brakes. Though I was getting a good deal.

 

[Dragon Slayer]

Do you have a picture? 71B used a different booster than 66-70 B. The common Bendix dual dia repo you see on ebay is what the car would have had.

 

[Duran75]

1. 
   
   
   Here’s the picture of the booster. Also I said 71 Charger, it’s a 72, not 71...

 

[Dragon Slayer]

That design does look like the booster on some models 71 and up. The key is the rod code on the back rod. If you push the rubber cover down and see what is stamped on the rod, that tells what application.

Again, not correct OEM wise for a 70. The 70 service manual will show you a picture. Your booster should have 8B D rod code. It also used the bell crank linkage to attach booster to brake pedal. Reinforcement plate different also. Can you make others work, sure. The 71 up master cylinder was different also, smaller bore the the 70. Will have a small effect on brake pedal effort when combined with booster.

So it all depends on what your after since the disc are aftermarket.

 

[Duran75]

Thank you for your help!! I’ll get back with the rod info. I still have my original booster. Can it be rebuild and used with the wilwood disk brakes? What do you think?