Yes the 70 core support is unique and different from the 71 and up. You are correct that the main difference is in the vertical section under the lh and rh sides. The evap canister mounting design changed from 1970 and thus drove changes to the both sides of the core support just above the rectangular stampings.
The top piece is a 70 unit and the bottom is a 71.
If you want the top one you can have it for free as it needs plenty of work.
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1969 TA RAIII M40 Auto Cameo White/ Std Blue Int
1970 TA RAIII M21 4-spd Lucy Blue/Std Black Int
1971 TA 455 HO M22 4-Spd Lucy Blue/Deluxe White Int
Last edited by RAJ7395; 04-04-2024 at 08:09 PM.
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