hi/lo hump cabs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gregbr · 02-20-2005, 07:59 PM

Which cab is installed on a factory 4wd truck....hi hump? If it is the hi hump, can a low hump cab be installed or modified to install without problems? Greg

vtblazer · 02-20-2005, 08:03 PM

Two option's.
Cut out the low hump and install a high hump or
install a body lift.
If you go the body lift route, you'll need to modify the low hump to accommodate the 4x4 shifter.

*dtlilly* · 02-20-2005, 08:04 PM

4X4 trucks had a high hump. You can cut the low hump out, find the removable hump with the type holes you need and bolt it in. Another option you have is to install a body lift, so the tranny and t-case will fit under the cab.

Striker169 · 02-20-2005, 08:19 PM

could someone show me pics of a hi and a lo hump?

gregbr · 02-20-2005, 09:40 PM

Sounds OK, is the removable hump the hi hump or do both humps just bolt in?? I have another truck with a factory BB, I understand it will have the hi hump also, but I have never compared the two. Is the hi hump taller like it sounds? Thanks for the great info. Greg

neonlarry · 02-20-2005, 10:01 PM

Hi hump is taller and bolts in low hump is part of the floor i.e. one piece.

gregbr · 02-20-2005, 10:25 PM

Thanks neonlarry.

02-20-2005, 07:59 PM	#1
gregbr Senoir Member Join Date: Mar 2002 Location: Rock Hill, SC USA Posts: 1,214	hi/lo hump cabs Which cab is installed on a factory 4wd truck....hi hump? If it is the hi hump, can a low hump cab be installed or modified to install without problems? Greg __________________ 67 Chevy, Small back glass, Factory 4WD, Factory Shortbed, Factory V8, Lifted 4" 70 GMC Sierra Grande, Factory Shortbed, Factory 402/400 turbo, Super Custom Interior. Numbers matching with SPID & Build Sheet. 68K Original Miles. Restored 2010 70 GMC Restoration Pictures http://67-72chevytrucks.com/gallery/...00&ppuser=4424

02-20-2005, 09:40 PM	#5
gregbr Senoir Member Join Date: Mar 2002 Location: Rock Hill, SC USA Posts: 1,214	Sounds OK, is the removable hump the hi hump or do both humps just bolt in?? I have another truck with a factory BB, I understand it will have the hi hump also, but I have never compared the two. Is the hi hump taller like it sounds? Thanks for the great info. Greg __________________ 67 Chevy, Small back glass, Factory 4WD, Factory Shortbed, Factory V8, Lifted 4" 70 GMC Sierra Grande, Factory Shortbed, Factory 402/400 turbo, Super Custom Interior. Numbers matching with SPID & Build Sheet. 68K Original Miles. Restored 2010 70 GMC Restoration Pictures http://67-72chevytrucks.com/gallery/...00&ppuser=4424

02-20-2005, 10:01 PM	#6
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	Hi hump is taller and bolts in low hump is part of the floor i.e. one piece. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

02-20-2005, 10:25 PM	#7
gregbr Senoir Member Join Date: Mar 2002 Location: Rock Hill, SC USA Posts: 1,214	Thanks neonlarry. __________________ 67 Chevy, Small back glass, Factory 4WD, Factory Shortbed, Factory V8, Lifted 4" 70 GMC Sierra Grande, Factory Shortbed, Factory 402/400 turbo, Super Custom Interior. Numbers matching with SPID & Build Sheet. 68K Original Miles. Restored 2010 70 GMC Restoration Pictures http://67-72chevytrucks.com/gallery/...00&ppuser=4424

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02-20-2005, 08:03 PM	#2
vtblazer Registered User Join Date: Oct 2003 Location: Central Vermont Posts: 8,538	Two option's. Cut out the low hump and install a high hump or install a body lift. If you go the body lift route, you'll need to modify the low hump to accommodate the 4x4 shifter.

02-20-2005, 08:04 PM	#3
dtlilly Account Suspended Join Date: Jan 2003 Location: Shadow of Lambeau Field Posts: 5,597	4X4 trucks had a high hump. You can cut the low hump out, find the removable hump with the type holes you need and bolt it in. Another option you have is to install a body lift, so the tranny and t-case will fit under the cab.

02-20-2005, 08:19 PM	#4
Striker169 Car O'Holic Join Date: Jan 2005 Location: Austin, Tx. Posts: 692	could someone show me pics of a hi and a lo hump?



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