High or lo hump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Momboy007 · 10-09-2008, 08:26 PM

Hello All,
I want to buy carpet for the 69 GMC, but when I checked on it, they wanted to know if I have a high or low hump. How would I know? It is a 396 BB with 400 turbo trans automatic
Thanks all in advance,
Rick

scottm · 10-09-2008, 08:41 PM

I believe that the high hump is for a manual trans with floor shift. My auto has a low one.

Longhorn Man · 10-09-2008, 08:54 PM

if it is an original big block/auto, then it is a high hump.
Pull back the carpet, and see if the hump is bolted in. If so, it's a high hump. If it is part of the stamped floor, it's a low hump.

Husker · 10-10-2008, 08:51 PM

Where is the best place to get carpet?
I need some black for Hi Hump No fuel tank in cab. Evidentily ACC does not carry or make it.
Ron

**leddzepp** · 10-11-2008, 02:58 AM

Quote:

Originally Posted by Husker

Where is the best place to get carpet?
I need some black for Hi Hump No fuel tank in cab. Evidentily ACC does not carry or make it.
Ron

Ditto

yellow69z28rs · 05-12-2009, 07:13 PM

I tried to order carpet today for my 71 Burban and ACC asked me if I had a 350 or a 400 tranny, but it came to me with a 350CI and a 700R4 tranny, so how do I know? It is a 3/4 ton 8 lug. The glove box says "M-49 TURBO HYDRO-MATIC" So which one do I order? Please help as they want take it back if I order the wrong one. Thanks Rob

Longhorn Man · 05-12-2009, 08:39 PM

they are retarded. TH350 and TH400 wouldn't make a difference on the floor.
if it is an original big block/auto, then it is a high hump.
If it is an original 4 speed, it's a high hump.
If it is an original 4X4, it's a high hump.
All others SHOULD be low hump. Some odd ball trucks have made it off the assembly line with wrong humps.
Pull back the carpet, and see if the hump is bolted in. If so, it's a high hump. If it is part of the stamped floor, it's a low hump.

jbristo67 · 05-13-2009, 01:42 AM

Quote:

Originally Posted by Longhorn Man

they are retarded. TH350 and TH400 wouldn't make a difference on the floor.
if it is an original big block/auto, then it is a high hump.
If it is an original 4 speed, it's a high hump.
If it is an original 4X4, it's a high hump.
All others SHOULD be low hump. Some odd ball trucks have made it off the assembly line with wrong humps.
Pull back the carpet, and see if the hump is bolted in. If so, it's a high hump. If it is part of the stamped floor, it's a low hump.

I have a friend that has a 67 small window 2 wheel drive high hump Numbers off of the cab match the numbers on the frame. There werent supposed to be any big blocks in 67 Go figure

sweet70beast · 05-13-2009, 09:18 AM

Quote:

Originally Posted by Longhorn Man

Pull back the carpet, and see if the hump is bolted in. If so, it's a high hump. If it is part of the stamped floor, it's a low hump.

Always and never are two words that shouldn't be said, especially when it comes to "The Factory".
As Andy said the best way to be certain is to pull the carpet back and you'll know for a fact which one you have regardless of what your truck had or has now for a powertrain.

Longhorn Man · 05-12-2009, 08:39 PM

And FYI... M49 could be TH350 or TH400.

Neal Molder · 05-12-2009, 09:13 PM

I have a 396 with turbo 400 also and it is high hump

yellow69z28rs · 05-12-2009, 11:32 PM

Thanks for the help. Rob

Longhorn Man · 05-13-2009, 08:09 PM

ACC isn't a very good carpet kit to buy either. I've had mine in for a little over a year... to include a few months of the suburban being parked in a dark garage... and the carpet is already faded a little.

**Hart_Rod** · 05-13-2009, 08:42 PM

High hump
...
...
low hump

mark 68 · 05-13-2009, 10:41 PM

does any body make replacements high humps

DMARCUM123 · 05-13-2009, 10:52 PM

not that i know of you can find them

10-09-2008, 08:26 PM	#1
Momboy007 Registered User Join Date: Mar 2008 Location: Southern California Posts: 82	High or lo hump Hello All, I want to buy carpet for the 69 GMC, but when I checked on it, they wanted to know if I have a high or low hump. How would I know? It is a 396 BB with 400 turbo trans automatic Thanks all in advance, Rick

10-09-2008, 08:41 PM	#2
scottm Registered User Join Date: Feb 2008 Location: winnipeg,Mb Posts: 81	Re: High or lo hump I believe that the high hump is for a manual trans with floor shift. My auto has a low one.

10-09-2008, 08:54 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: High or lo hump if it is an original big block/auto, then it is a high hump. Pull back the carpet, and see if the hump is bolted in. If so, it's a high hump. If it is part of the stamped floor, it's a low hump.

10-10-2008, 08:51 PM	#4
Husker Registered User Join Date: Dec 1999 Location: Mid NE USA Posts: 2,212	Re: High or lo hump Where is the best place to get carpet? I need some black for Hi Hump No fuel tank in cab. Evidentily ACC does not carry or make it. Ron __________________ Member #111 68 C-10 Daily Driver 70 4x4 Project 76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson

05-12-2009, 07:13 PM	#6
yellow69z28rs Registered User Join Date: Jun 2008 Location: alexandria la. Posts: 33	Re: High or lo hump I tried to order carpet today for my 71 Burban and ACC asked me if I had a 350 or a 400 tranny, but it came to me with a 350CI and a 700R4 tranny, so how do I know? It is a 3/4 ton 8 lug. The glove box says "M-49 TURBO HYDRO-MATIC" So which one do I order? Please help as they want take it back if I order the wrong one. Thanks Rob

05-12-2009, 08:39 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: High or lo hump they are retarded. TH350 and TH400 wouldn't make a difference on the floor. if it is an original big block/auto, then it is a high hump. If it is an original 4 speed, it's a high hump. If it is an original 4X4, it's a high hump. All others SHOULD be low hump. Some odd ball trucks have made it off the assembly line with wrong humps. Pull back the carpet, and see if the hump is bolted in. If so, it's a high hump. If it is part of the stamped floor, it's a low hump.

05-12-2009, 08:39 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: High or lo hump And FYI... M49 could be TH350 or TH400.

05-12-2009, 09:13 PM	#11
Neal Molder The Black Pearl Join Date: Apr 2009 Location: Brooks Alberta Canada Posts: 63	Re: High or lo hump I have a 396 with turbo 400 also and it is high hump

05-12-2009, 11:32 PM	#12
yellow69z28rs Registered User Join Date: Jun 2008 Location: alexandria la. Posts: 33	Re: High or lo hump Thanks for the help. Rob

05-13-2009, 08:09 PM	#13
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: High or lo hump ACC isn't a very good carpet kit to buy either. I've had mine in for a little over a year... to include a few months of the suburban being parked in a dark garage... and the carpet is already faded a little.

05-13-2009, 08:42 PM	#14
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,858	Re: High or lo hump High hump ... ... low hump Attached Images __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 Last edited by Hart_Rod; 05-13-2009 at 08:46 PM.

05-13-2009, 10:41 PM	#15
mark 68 Registered User Join Date: Nov 2008 Location: texas Posts: 84	Re: High or lo hump does any body make replacements high humps

05-13-2009, 10:52 PM	#16
DMARCUM123 Registered User Join Date: Sep 2006 Location: WAYNE, WV. Posts: 675	Re: High or lo hump not that i know of you can find them Last edited by Longhorn Man; 05-14-2009 at 09:26 AM.



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