06-22-2019, 08:43 PM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
Posts: 36,633
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If you ordered the Drag Pak option for your 1970 Boss 302 Cougar Eliminator you got the 4.30 rear. Unlike the 428 CJ & SCJ the 3.91 was not available as a Drag Pak (you could order the 3.91 with Traction-Lok though). Mercury called the 3.91 rear the Drag Pak and the 4.30 rear the Super Drag Pak BTW.
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