The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Hi-Low Hump in late square?

Lnielson · 02-21-2018, 04:17 PM

I'm swapping a NV4500 in place of a SM465 in my truck right now, 1986 K30 Crew. The 81 and up squares do not have a removeable tunnel. I don't know what dictates the high/low hump changes. I'm going to cut mine and make it removeable.

02-21-2018, 04:17 PM	#2
Lnielson Registered User Join Date: Jul 2017 Location: Preston, ID Posts: 3	Re: Hi-Low Hump in late square? I'm swapping a NV4500 in place of a SM465 in my truck right now, 1986 K30 Crew. The 81 and up squares do not have a removeable tunnel. I don't know what dictates the high/low hump changes. I'm going to cut mine and make it removeable.