GUMM B
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Believe it or not, the K-Frame of a 1973 V8 Challenger or Cuda has the same part number (P/N: 3583 074) as a 1971 B-Body non-hemi V8 car. What other years of B-Body cars is this K-Frame compatible with?
K-Frame Compatibility Question
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WileE
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Off my foggy memory, I'd think just a 1972.
GUMM B
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Okay, and why do you think the 1972 B-Body and E-Body K-Frame part number is different than the one for 1971?
62-72 B body, 70-74 E body.
Essentially the same piece. With differences here and there of course.
Essentially the same piece. With differences here and there of course.
I believe he is just saying '72 B-body is the only other it's the same as since '73-4 b-body is a COMPLETELY different animal...
nitro_rat
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The K-member will physically bolt in to any of these, sure. The angle of the steering box is different on E-bodies. '65 and earlier sit the engine a couple inches further forward. There are at least 3 different sway bar designs. Three different families of motor mounts with different positions for different engines. There are probably 12-15 different K-members to fit all variations of those cars.
71-72 B and E body are going to be the best fit for the OP's unit...
curious as to the difference between a 72 & 73?
On 73 B bodies went into the isolated K members like big bodies. This made a different frame rail heights and provision for the UCA welded straight to the K member. Not anymore UCAs on frame rails.
Aside the spool engine mount design upgrade.
Aside the spool engine mount design upgrade.
thank you, I was always under the impression the 72 to 73 changes were purely cosmetic. I had no idea about the differences in frame heights. I would assume all front inner structure component pieces are also not compatible due to this?
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70-72 versa the 73-up frames
that makes it very obvious. much appreciated!!
Correct. Nothing of the front suspension, front clip frame and steering system is interchangeable. Not even rear crossmember for T bars or T bars
Front valence and fenders are also different although somehow fit. Front bumper brackets diff too.
Some ppl consider the 73/74 as a 3,5 gen.
Glad I asked and more so for your clarification. I’m looking for a used OEM torsion bar for my 73 and this information will streamline my search.
nitro_rat
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Dead Dodge Garage on YouTube has a series on the "tool box" Charger and he has videos showing the differences and how to "suck in" the bumpers on a 73-74 to make it look more like a 71-72. Also some good info on making the hide away headlights work of you're interested in that...
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