Engine to transmission supports

It seems the difference is just the left side strut for the LA engines sometime after '69.

'67 & 69 Parts book shows:
Right Strut 2204 702
Left Strut 2466 009

'74 Parts Book shows:
Right Strut 2204 702
Left Strut 2464 552 A & E bodies
Left Strut 3681 658 (has one oblong hole) B bodies

For the attaching screws, books are a little confusing but it appears the earlier strut attaches to the engine with a smaller dia screw.
'67 & 69 Parts book shows:
7/16-14 x 1 1/8 (AR)
3/8-16 x 1" Qty (2) ('69)
7/16-14 x 1 7/8 (1) for left side, to transmission case.
3/8-16 x 7/8 (1) for left side, strut to engine block. ('67)

'74 Parts Book shows:
Screw w/ Washer
7/16-14 x 1 1/8"
7/16-14 x 1 7/8 (1) for left side, to transmission case.