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#1 |
Registered User
Join Date: Oct 2009
Location: Sacramento, CA
Posts: 161
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Transmission Hump
Hi All. . .I'm going to get a carpet kit for my truck, and I'm wondering how to tell which size "hump" covers the bell housing. I have a 350 turbo hydromatic.
![]() I have no idea what these are. . .
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1972 Chevy C-10 ~ 188,000 miles give or take |
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#2 |
SWB 4x4 Collector
![]() Join Date: Jun 2001
Location: Osage City, KS
Posts: 5,153
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Re: Transmission Hump
Mike, I am betting you have a low hump, as a high hump was on 4x4, manual trans, and turbo 400 only trucks. Here is a pic of my truck with a high hump: Trevor
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TREVOR ![]() ![]() ![]() ![]() ![]() http://67-72chevytrucks.com/vboard/s...d.php?t=624819 ![]() ![]() :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
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#3 |
Registered User
Join Date: Oct 2009
Location: Sacramento, CA
Posts: 161
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Re: Transmission Hump
Hey Trevor, Thanks a lot!
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1972 Chevy C-10 ~ 188,000 miles give or take |
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#4 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Transmission Hump
TH400 got a smnall hump.
Where does that come from? I hear a LOT of people say that. 4 speed, 4X4, and BIG BLOCK with AUTO. If you got the TH400 with a small block or an inline... you got the low hump. Plus, every once in a while one can't be explained. like my old GMC v-6 truck with a high hump. |
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#5 |
SWB 4x4 Collector
![]() Join Date: Jun 2001
Location: Osage City, KS
Posts: 5,153
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Re: Transmission Hump
Andy, I think you hear it a lot because most of the time a turbo 400 came with big blocks. I never even knew someone could order the tranny without a big block. Trevor
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TREVOR ![]() ![]() ![]() ![]() ![]() http://67-72chevytrucks.com/vboard/s...d.php?t=624819 ![]() ![]() :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
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#6 |
Registered User
Join Date: Dec 2006
Location: Porter Ranch, CA
Posts: 978
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Re: Transmission Hump
Maybe that was for the rare optioned 250 I-6 with a TH400??? You'd need to put a blower on the 6 just to turn the gears in the dang thing! HAHA
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#7 |
Registered User
Join Date: Sep 2006
Location: Shelley Idaho
Posts: 876
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Re: Transmission Hump
I had a 68 C-10 2wd with a 327/th400 and a high hump.
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1970 Nova 327/T5 (my 1st car) 1971 K-20 350/350/205 (winter DD) 1953 GMC Suburban 1968 Chevy Bel Air 1976 Chev C-10 1972 Skylark (suncoupe) 1 of 3943 made |
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#8 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Transmission Hump
the TH350 was never installed in a pick up till 69, so ALL 3 speed auto trucks were TH400.
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#9 |
HickTown
Join Date: Apr 2009
Location: ANDOVER, Kansas
Posts: 355
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Re: Transmission Hump
low hump unless 4x4
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1993 Ford Mustang Vert w/ 2.3 1969 Chevy C/10 w/350 1968 Chevy C-20 w/250 1976 Dodge Aspen W/ 225 2000 Toyota Tundra w/4.7 1987 Dodge Ram D-100 w/360 255/70-15 ___________ (oo)══╬══(oo) ‾‾‾‾‾‾‾‾‾‾‾ |
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#10 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: Transmission Hump
easy way to tell which you have is to look at it. if it bolts to the floor it is high. otherwise it's a low hump.
I prefer the high as it gives my foot a larger side rest |
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#11 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Transmission Hump
It's been well explained in the posts above. Plenty of 2 wheel drives had high humps.
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I'm on the Instagram- @Gearhead_Kevin |
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#12 |
70 Chevrolet=Obsession
Join Date: Jun 2009
Location: nice ca
Posts: 1,067
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Re: Transmission Hump
I think this has been gone over before. What everyone missed is that a 2WD SBC with manual floor shift has a high hump!
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![]() ![]() ![]() I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) |
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#13 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Transmission Hump
Andy covered that in post number 4.
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I'm on the Instagram- @Gearhead_Kevin |
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#14 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Transmission Hump
I am always amazed at how hard everyone makes this.
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#15 |
Registered User
Join Date: Sep 2006
Location: Shelley Idaho
Posts: 876
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Re: Transmission Hump
Who's making it hard? If it bolts on it's a high hump if it doesn't bolt on and is not removable it's a low hump.
Two words that shouldn't be said when it comes to vehicles are ALWAYS and NEVER. Just when we think we know whats up something come along that shows us what we thot we knew was wrong. With the factory anything was possible odds are being a 72 with a th350 it's a low hump but for all we know some might have left with high humps because something on the assembly line could have been changed at the last minute. I always thot th400s got a high hump because both trucks I've owned with th400s had high humps, one was a factory big block and the other was a factory small block.
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1970 Nova 327/T5 (my 1st car) 1971 K-20 350/350/205 (winter DD) 1953 GMC Suburban 1968 Chevy Bel Air 1976 Chev C-10 1972 Skylark (suncoupe) 1 of 3943 made Last edited by sweet70beast; 10-25-2009 at 12:08 AM. |
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#16 |
Registered User
Join Date: Nov 2008
Location: Rapid City SD
Posts: 36
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Re: Transmission Hump
So I could take a 4 speed cab and bolt a th400 hump in it, and have a cab that would be just like a factory th400 cab would have been?
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Rick 71 C10 long fleet sold ![]() 72 C10 short fleet ![]() 72 Olds cutlass 85 442 87 442 |
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#17 |
Account Suspended
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Location: Powell, Wyoming
Posts: 4,973
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Re: Transmission Hump
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