Easiest frame swap for '68 coupe.... - Impala Tech
Brakes & Suspension Conversion Questions & more

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post #1 of 3 (permalink) Old 04-14-2016, 08:23 PM Thread Starter
Join Date: Oct 2015
Location: Braxton, MS
Posts: 3
Easiest frame swap for '68 coupe....

Greetings All,

What donor vehicle has the easiest and best frame swap for this Impala model. I am hoping to update to something in the 80's-90's. Any suggestions?
G Graham is offline  
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post #2 of 3 (permalink) Old 04-14-2016, 09:19 PM
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Join Date: Apr 2014
Location: North Dakota
Posts: 132
You may be the first, not sure if it has ever been done, or work. But I have been wrong before.

63 Impala SS Convertible
66 Impala SS
68 Camaro RS/SS
73 Camaro Z28
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post #3 of 3 (permalink) Old 04-16-2016, 08:26 PM
Join Date: Jan 2006
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George the frame you need for your car will be found under a 1967-70 full size (aka B-body) excluding the station wagon. The holes or brackets to mount the body to the frame differ by model (Convertible is different from the Hard Top in having an extra cross-member and a deeper, stronger (thicker metal) frame but it will fit under the hard top. The Sedan differs from the hard top as well and all two doors differ from the four doors by virtue of having a different wheel base.

The difference in the 1965 through 1970 frames and the 1971-76 frames lies in how the rear end is attached. In the earlier cars the rear control arms where all parallel to each other and the rear was centered by a Panhard bar that had a bracket welded onto the frame to secure it. From 1971 and up the rear end was centered by means of triangulated top control arms and lower control arms that remained parallel (like what a Chevelle used).

All B-bodies from 1965 up shared suspension parts with the each other and the Corvette (even using some parts off a light pick-up truck). If you are just looking for disc brakes or stiffer stronger suspension parts I would retain your frame and use other parts.

Big Dave
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