65-70 frame differences? - Impala Tech
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post #1 of 4 (permalink) Old 06-10-2014, 02:54 PM Thread Starter
Join Date: May 2013
Location: Green Bay
Posts: 10
65-70 frame differences?

Ive got a 69 2dr caprice
I'm in need of either a complete frame or the drivers side frame rail from trans crossmember to the rear body mount. My question is why is the frame listed for 69-70 only? Would the section I need be the same on 65-68 also? Or the entire frame? I thought 65-70 was pretty similar suspension wise (minus disc brake stuff)

1969 Caprice 327 TH350 - restomod project
2003 Impala 9c1 - stuff done
1964 Chevelle Malibu SS - mild resto
1976 XJ12 - stock v12/bagged
1998 Trans Am - lots done
1999 GTP - lots done
1999 GSE - T66 T3/T04e hybrid
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post #2 of 4 (permalink) Old 06-10-2014, 04:41 PM
Join Date: Jan 2006
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The frames are physically the same size but there are differences in the way the body mounts to the frame and how the bumpers bolted on that changed over the years. Those differences are great enough that they earn a different Hollander number. If you check the Hollander catalog it will tell you what differences there are.

I would bore new holes and fabricate a mounting bracket before I would attempt to fabricate a frame rail. If the frame is that damaged by collision or rust then it is time to replace it with a brand new looking rust free used one from out of the desert southwest.

Big Dave
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post #3 of 4 (permalink) Old 06-11-2014, 05:12 AM
Join Date: Jan 2007
Location: Lewisburg, Ohio
Posts: 2,909
I agree, replace the frame. 65-66 frames have a different steering setup as the Idler arm goes through the frame . The 67-70 Idler arm bolts to the inside frame rail. Steering arms may be different also. In the rear the upper suspension arms on 65-66 frames are longer. Then there are the differences Big Dave pointed out.
Even with all that, you can actually interchange all the 65-70 frames, but I would never use a 65-66 frame under a 67-70.
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post #4 of 4 (permalink) Old 06-11-2014, 07:21 AM
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65-68 frames

See if this helps at all, it's from another site forum:




1966 Impala SS

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