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Old 01-25-2020, 06:24 PM
'ol Pinion head 'ol Pinion head is offline
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Join Date: Apr 2000
Location: INJUN Territory, Red State Merica!
Posts: 9,581
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1 1/4" front was used on all '70-81 TransAms.

the 3/4" rear was a '78-81 WS6 piece (along with own specific durometer bushings).
13/16" rear bar was a 73-74 T/A deal.
Many 70's as well as all 71 & 72 T/A's & optional handling pkg '71-72 Formulas came with 7/8" rear bar. Several years back some company did a quality reproduction of the 7/8" rear bar.

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