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fornear99
08-20-2011, 06:49 PM
need some help here
is a 70 frame the same for all three bodies?
2 door, 4 door, and convertible?
the final question is...
can i put a convertible body on a 4 dorr frame?
thanks as always
fornear99
Briz
08-21-2011, 07:43 AM
I don't think so. I believe the 4 door frame is longer and I also think the convertible frame is built heaver. I could be wrong.
thepartsman
08-21-2011, 03:13 PM
1970 Electra 2dr & 4dr use the same"open" frame.
Code "BY" also stamped 1235666

Convertible uses a "closed" or "boxed" frame.
Code "BX" also stamped 1235667.

GM/Buick also states '69 & '70 use the same frame.

A little info to help with your decision :TU:
Bad Boattail
08-22-2011, 04:08 AM
GM/Buick also states '69 & '70 use the same frame.

But the model year 1970 Electra has a 127 inches wheelbase.
Model years 1969 has a 126.2 inches wheelbase.
Model year 1968 has a 126 inches wheelbase.
thepartsman
08-22-2011, 07:30 AM
But the model year 1970 Electra has a 127 inches wheelbase.
Model years 1969 has a 126.2 inches wheelbase.
Model year 1968 has a 126 inches wheelbase.


GM/Buick also states '69 & '70 use the same frame.

Try this - Gm/Buick states as a replacement part the '69 & '70
use the same frame part number.

In 1972 Buick did not see a problem with the .8 inch difference between the '69 and '70 years.
bammax
08-22-2011, 05:24 PM
The wheelbase is somewhat dependent on the control arms used. Longer rear arms will increase the wheelbase without changing the frame.
fornear99
08-22-2011, 08:49 PM
i'm pretty sure the 70 frame length was the same regardless of the configuration...
(2 door/4 door/convert)
you guys have me spooked with "open" frame/ "boxed" frame
if the part number is the same, i'm confused
is there a unique convertible frame?
don't want to put the convert body on the four door frame and end up with a problem
bammax
08-22-2011, 11:03 PM
1970 Electra 2dr & 4dr use the same"open" frame.
Code "BY" also stamped 1235666

Convertible uses a "closed" or "boxed" frame.
Code "BX" also stamped 1235667.

GM/Buick also states '69 & '70 use the same frame.

A little info to help with your decision :TU:

Answer is right there. Converts used a boxed type frame to give more support since the body doesn't have a roof to provide rigidity.