The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - which front and rear diffs came on my suburban and will these fit?

Jsfucttruck · 03-18-2018, 10:23 PM

I have a 78 k20 burb that came with a 14bff.

It was my understanding that 4x4 burbs after 81 did not come with 14bff or a BBC. K/V 20 series only came with semi float 14 axle with a sbc or diesel.

If it was a 2wd. You could get a 454 and a 14bff in one package.

03-18-2018, 10:23 PM	#4
Jsfucttruck Registered User Join Date: Jul 2011 Location: Aptos Posts: 363	Re: which front and rear diffs came on my suburban and will these fit? I have a 78 k20 burb that came with a 14bff. It was my understanding that 4x4 burbs after 81 did not come with 14bff or a BBC. K/V 20 series only came with semi float 14 axle with a sbc or diesel. If it was a 2wd. You could get a 454 and a 14bff in one package.