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trailcarnage · 11-10-2016, 11:07 PM

Are both the TH400 and 4L80 direct bolt-ups to a 454? I read that the 4L80 may require a different flex plate. I'm more concerned about the bell housing pattern though.

11-10-2016, 11:07 PM	#13
trailcarnage Registered User Join Date: Oct 2016 Location: Ontonagon, MI Posts: 56	Re: Newb Transmission Advice Are both the TH400 and 4L80 direct bolt-ups to a 454? I read that the 4L80 may require a different flex plate. I'm more concerned about the bell housing pattern though.