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Old 10-09-2008, 08:26 PM   #1
Momboy007
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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
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Old 10-09-2008, 08:41 PM   #2
scottm
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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.
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Old 10-09-2008, 08:54 PM   #3
Longhorn Man
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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.
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Old 10-10-2008, 08:51 PM   #4
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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
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Old 10-11-2008, 02:58 AM   #5
leddzepp
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Re: High or lo hump
Quote:
Originally Posted by Husker View Post
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
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Old 05-12-2009, 07:13 PM   #6
yellow69z28rs
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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
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Old 05-12-2009, 08:39 PM   #7
Longhorn Man
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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.
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Old 05-12-2009, 08:39 PM   #8
Longhorn Man
its all about the +6 inches
 
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Re: High or lo hump
And FYI... M49 could be TH350 or TH400.
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Old 05-12-2009, 09:13 PM   #9
Neal Molder
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Re: High or lo hump
I have a 396 with turbo 400 also and it is high hump
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Old 05-12-2009, 11:32 PM   #10
yellow69z28rs
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Re: High or lo hump
Thanks for the help. Rob
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Old 05-13-2009, 01:42 AM   #11
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Re: High or lo hump
Quote:
Originally Posted by Longhorn Man View Post
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
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Old 05-13-2009, 09:18 AM   #12
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Re: High or lo hump
Quote:
Originally Posted by Longhorn Man View Post
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.
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Old 05-13-2009, 08:09 PM   #13
Longhorn Man
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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.
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Old 05-13-2009, 08:42 PM   #14
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Re: High or lo hump
High hump
...
...
low hump
Attached Images
  
Last edited by Hart_Rod; 05-13-2009 at 08:46 PM.
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Old 05-13-2009, 10:41 PM   #15
mark 68
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Re: High or lo hump
does any body make replacements high humps
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Old 05-13-2009, 10:52 PM   #16
DMARCUM123
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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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