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FED 387 · 04-27-2020, 02:05 PM

9 inch only on COPO -Cobra Jet and Drag pac is the way I understand it--I think NHRA had a post on what vehicles can use a 9 inch-FED 387

04-27-2020, 02:05 PM	#11
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,423 Likes: 538 Liked 333 Times in 180 Posts	Re: stock class rear axle? 9 inch only on COPO -Cobra Jet and Drag pac is the way I understand it--I think NHRA had a post on what vehicles can use a 9 inch-FED 387 Last edited by FED 387; 04-27-2020 at 02:07 PM. Reason: add info