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What's the difference between B and E K-frames

Started by 375instroke, August 02, 2013, 01:34:07 PM

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375instroke

August 02, 2013, 01:34:07 PM
'70 B-body ran the sway bar inside, instead of in front, and hanging down.  What is different in '71, and are the same as E-body?  I got what is supposed to be a '71 Challenger K-frame, and want to use in on a '69 Charger.  Will I have any problems?

Dino

#1
August 02, 2013, 02:32:58 PM
I don't know all the details on this but I know that the 71 e body k frame will fit a 71-72 b body.  I'm not sure they fit the 2nd gens though, although I'm sure they can be made to fit.  I can only assume the sway bar is like the 70 so you would not be able to use the 69 sway bar.  Hopefully someone else chimes in to elaborate a bit more.

Extraordinary claims require extraordinary evidence.

Cooter

#2
August 02, 2013, 05:13:25 PM
Good question. Been wondering it myself. I just always got the correct one for app. but, I can see where there might be a need for interchange info.
" I have spent thousands of dollars and countless hours researching what works and what doesn't and I'm willing to share"

ws23rt

#3
August 02, 2013, 06:00:01 PM
Information I have shows K frame part number for 71 E and B body is 3583074 for non Hemi cars.
1970 PN 3466477 is for E body cars except Hemi and 340 6pk
1970 PN 2962090 is for B body cars except Hemi or 440
1970 PN 3466479 is for B body cars with 440.
I know this may not be much help because it doesn't address the differences. They may be easy fixes or not.
This info comes from an interchange manual and they don't get into what the differences are.
Even a side by side check of two different K frames would be a head scratcher to compare all mount points.

Charger RT

#4
August 02, 2013, 08:57:24 PM
my 68 charger has a 70 B body K frame in it with 71 B body lower control arms, spindles, and sway bar.
Tim

375instroke

#5
August 02, 2013, 11:15:26 PM
Are the part numbers for '70 B and E body the same?

68RED4SPEED

#6
August 03, 2013, 06:25:24 AM
70-71 E-body are same as 71-72 B-body, the bracket for the steering box has a different angle because those bodies are wider then 66-70 B-bodys.

Moparparts

#7
August 25, 2013, 10:00:08 PM
X2 the angle is different for mounting the steering box from a 70-72 E-Body to a 66-70 B-Body

Quote from: 68RED4SPEED on August 03, 2013, 06:25:24 AM
70-71 E-body are same as 71-72 B-body, the bracket for the steering box has a different angle because those bodies are wider then 66-70 B-bodys.

Mike DC

#8
August 26, 2013, 11:43:11 AM
Yeah, there goes the hope of any easy B/E interchange. 

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