1973 Charger suspension changes

[cooldude]

I read today that the Charger suspensions were redesigned in 1973, and that interchange stuff for the 1973 B bodies meant that my 73 Charger, will interchange more commonly with a 1975 Cordoba, than with a 71 or 72 Charger.

Is this true?   

[Kern Dog]

In the effort to reduce noise, vibration and harshness,  (NVH) Ma Mopar made a few changes to these cars. The worst by far was the use of soft rubber spacers between the engine cradle/K member and the frame rails. Sure, it was quieter but also squishy in the turns. The spindles/knuckles were made taller to accomodate the k member spacers. The lower ball joints no longer had the steering arms built into them. The upper control arm design was changed as well. The leaf springs out back used fatter rubber bushings as well.
Put some power in the car and you'll see what happens for yourself. There are many improvements that can be made though.

[polywideblock]

try this  http://www.energysuspensionparts.com/5.4111
or these   http://www.firmfeel.com/b_body_late_mopar_sub_frame_isolators.html

                                                               

[HPP]

I read today that the Charger suspensions were redesigned in 1973, and that interchange stuff for the 1973 B bodies meant that my 73 Charger, will interchange more commonly with a 1975 Cordoba, than with a 71 or 72 Charger.

Is this true?   

Yes, this is true. Your best source of parts to step up the handling performance of your car will be Firm Feel. The crew there has extensive experience with all eras of Mopars.

[ODZKing]

One other interesting note: torsion bars were also changed. No longer standard length but again 75-79 will work.
See my website: http://www.retrorarities.com/images/SteeringAndSuspension.pdf

[odcics2]

For what it's worth:

Back in the day, I had a 74 SE and added the fattest ADDCO "Swa-Bars" front and rear, Monroe gas shocks, 15x8" Super Coupe wheels with 255/60/15 Radial T/A tires all around. I could drive circles around my buddy's 78 Trans Am.

I left the t-bars and rear leafs stock, so I didn't stiffen the car up, in a straight line.  Lots of comfort until you turned and then it was SERIOUS!   
FLAT turns and it felt like a fast ratio steering box was added.

[cooldude]

My 73 Roadrunner had the front and rear swa bars, stock t- bars, and similar tires and wheels. And yes, t really would take a curve. I easily out handled 80s model camaros.

But I was young, and didnt understand that wrecks hurt a lot. I was lucky that I didnt crack it up.

BTW, are any of the noteworthy suspension parts from a 73 Roadrunner interchangeable with my 73 Charger? Saw bars, torsion bars,etc?

My RR was a big block, and my Charger is a 318.

[odcics2]

My 73 Roadrunner had the front and rear swa bars, stock t- bars, and similar tires and wheels. And yes, t really would take a curve. I easily out handled 80s model camaros.

But I was young, and didnt understand that wrecks hurt a lot. I was lucky that I didnt crack it up.

BTW, are any of the noteworthy suspension parts from a 73 Roadrunner interchangeable with my 73 Charger? Saw bars, torsion bars,etc?

My RR was a big block, and my Charger is a 318.

It all interchanges.

[Kern Dog]

Yeah, get both up in the air and you'd have a hard time telling them apart. They are the same car underneath.