converting to low hump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**rubberbandit** · 10-02-2011, 01:56 AM

Anybody know where I could find a low hump for a 72 chevy cab? I know there are some companies that sell entire floor pans but I'm just trying to replace my bolt in high hump with a low hump. I understand that its part of the floor in the low humps but a replacement piece, bolt-in or not, would be much easier than finding and cutting a low-hump cab

hugger6933 · 10-02-2011, 07:13 AM

I'm sure there are many poeple here would trade you[including me] a low hump for a high hump. Are you converting from a high hump to a low hump? I have two cabs that I will be doing the opposite.

**Tim Christian** · 10-02-2011, 10:10 AM

Don't know what your reason is but if you already have a high hump it would be cheaper and a much cleaner looking job just to bolt a high hump back in. But if that won't work for you. You would have to find a good used low hump cut it out and weld it back in your truck. Nobody reproduces these so you would have to go used.

**WETOWM** · 10-02-2011, 11:42 AM

I have a low hump cab that i am converting over to a high hump if that would help you at all??

**rubberbandit** · 10-02-2011, 07:16 PM

Okay, here's my story:

When I bought my truck the PO told me that it had a stock 350/th350 in it. After I got it home I ran the numbers of the engine and transmission and found out that both were out of a 1974 Chevy car. It was actually a 400(sbc) and a th400. I am rebuilding the engine and will still be using the TH400. I am doing a from off resto and, after looking at pics of other trucks, realized that there are different sizes of tranny tunnels (low hump and high hump).

I realized that mine is a high hump. I can tell that it was a low-hump at one time but the floor has been converted (cut out and drilled for a high-hump). I am putting a bench back in the truck and would like more leg room in the middle.

In your opinions, is this worth it? I can't imagine it would be difficult to put a low hump replacement back in. Are there any advantages to having a high hump?

If I did make the conversion I would like to keep the high hump cover in case I decided to go Big block in the distant future. What do you guys think I should do? Does anybody have a replacement piece (and a price) they would be willing to ship to 89145?

All comments welcome. Thanks

sboris · 10-02-2011, 08:08 PM

You don`t lose much leg room low to high hump and if theres
any chance at all your going BB, to me it wouldn`t be worth
monkeying with. My .02

ItsRandy · 10-02-2011, 10:59 PM

Quote:

Originally Posted by sboris

You don`t lose much leg room low to high hump and if theres
any chance at all your going BB, to me it wouldn`t be worth
monkeying with. My .02

I've got a big block in mine and I have a low hump...works great.

10-02-2011, 01:56 AM	#1
rubberbandit Active Member Join Date: Aug 2011 Location: Las Vegas, NV Posts: 147	converting to low hump Anybody know where I could find a low hump for a 72 chevy cab? I know there are some companies that sell entire floor pans but I'm just trying to replace my bolt in high hump with a low hump. I understand that its part of the floor in the low humps but a replacement piece, bolt-in or not, would be much easier than finding and cutting a low-hump cab __________________ -Chad '72, C10, SWB, fleet, 4L80E, 406sbc, EFI, TruTrac Blackfoot '69 C20 Suburban, PB Dropmember, 3rd row, LS3 6.2L, 4l80e, rear A/C, Dakota Digital HDX Babe: The Blue Ox

10-02-2011, 07:13 AM	#2
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: converting to low hump I'm sure there are many poeple here would trade you[including me] a low hump for a high hump. Are you converting from a high hump to a low hump? I have two cabs that I will be doing the opposite.

10-02-2011, 10:10 AM	#3
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,388	Re: converting to low hump Don't know what your reason is but if you already have a high hump it would be cheaper and a much cleaner looking job just to bolt a high hump back in. But if that won't work for you. You would have to find a good used low hump cut it out and weld it back in your truck. Nobody reproduces these so you would have to go used.

10-02-2011, 11:42 AM	#4
WETOWM Senior Member Join Date: Jun 2011 Location: ST LOUIS MO Posts: 2,119	Re: converting to low hump I have a low hump cab that i am converting over to a high hump if that would help you at all??

10-02-2011, 07:16 PM	#5
rubberbandit Active Member Join Date: Aug 2011 Location: Las Vegas, NV Posts: 147	Re: converting to low hump Okay, here's my story: When I bought my truck the PO told me that it had a stock 350/th350 in it. After I got it home I ran the numbers of the engine and transmission and found out that both were out of a 1974 Chevy car. It was actually a 400(sbc) and a th400. I am rebuilding the engine and will still be using the TH400. I am doing a from off resto and, after looking at pics of other trucks, realized that there are different sizes of tranny tunnels (low hump and high hump). I realized that mine is a high hump. I can tell that it was a low-hump at one time but the floor has been converted (cut out and drilled for a high-hump). I am putting a bench back in the truck and would like more leg room in the middle. In your opinions, is this worth it? I can't imagine it would be difficult to put a low hump replacement back in. Are there any advantages to having a high hump? If I did make the conversion I would like to keep the high hump cover in case I decided to go Big block in the distant future. What do you guys think I should do? Does anybody have a replacement piece (and a price) they would be willing to ship to 89145? All comments welcome. Thanks __________________ -Chad '72, C10, SWB, fleet, 4L80E, 406sbc, EFI, TruTrac Blackfoot '69 C20 Suburban, PB Dropmember, 3rd row, LS3 6.2L, 4l80e, rear A/C, Dakota Digital HDX Babe: The Blue Ox

10-02-2011, 08:08 PM	#6
sboris Registered User Join Date: Jun 2011 Location: Osceola, Ia Posts: 2,017	Re: converting to low hump You don`t lose much leg room low to high hump and if theres any chance at all your going BB, to me it wouldn`t be worth monkeying with. My .02 __________________ Shawn 68 chevy K/20 05 chevy 3/4 4x4 71 short step-sold 71 chevy Beauville van My build. http://67-72chevytrucks.com/vboard/s...d.php?t=633039



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