5-speed in a low hump '67 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

NitroMike · 12-31-2005, 09:32 AM

Gentlemen, and Ladies, I'm new to the forum so please be gentle. I'm in the midst of installing a new Tremec 5-speed behind my 250. It's got a .64 rear 5th so it should work great with the 3.77 stock rear. Good gas mileage might be fun. My question revolves around the hole in the floor that I anticipate having to cut. Does anyone have the "high hump" bolt-in tunnel piece from a stock 4-speed. I'd like to get one to use as a starting point. Any other suggestions? Ideally, I'd like all of this to work with a factory type "high hump" carpet.
Thanks for any and all input.

1972ChevyCheyenne · 12-31-2005, 10:19 AM

from Canada. I am no help but you, but there is a lot of great knowledge on this board. I am sure someone has done this, or has really thought about it. Good Luck

Bump

Willy Prost · 12-31-2005, 12:01 PM

You should be able to get a high hump cover from one of the board vendors or from the parts board.

I have a 3550 tremec in my 71 shortbed stepside. The 3550 will just barely fit with the low hump floor. I got a high hump cover and it makes installing the 3550 much easier. Solved the tight clearence issue also.

krue · 12-31-2005, 04:13 PM

Your best bet is to subscribe and post a WTB thread on the parts board. You should have no problem finding one.
Welcome to the board from South Mississippi.

Longhorn Man · 12-31-2005, 04:41 PM

A bit harder to find, but in my opinion a little better for your situation, try to find a bolt on high hump with no hole. 1/2 ton V-6 (GMC) trucks, and big block trucks with automatics should have them. This way, you can put the hole whyere ever the shifter is instead of making the stock hole bigger becouse it almost lines up.

12-31-2005, 09:32 AM	#1
NitroMike Active Member Join Date: Dec 2005 Location: Bethlehem, PA Posts: 346	5-speed in a low hump '67 Gentlemen, and Ladies, I'm new to the forum so please be gentle. I'm in the midst of installing a new Tremec 5-speed behind my 250. It's got a .64 rear 5th so it should work great with the 3.77 stock rear. Good gas mileage might be fun. My question revolves around the hole in the floor that I anticipate having to cut. Does anyone have the "high hump" bolt-in tunnel piece from a stock 4-speed. I'd like to get one to use as a starting point. Any other suggestions? Ideally, I'd like all of this to work with a factory type "high hump" carpet. Thanks for any and all input.

12-31-2005, 10:19 AM	#2
1972ChevyCheyenne Registered User Join Date: Sep 2004 Location: Teeswater, Ontario, Canada Posts: 173	Re: 5-speed in a low hump '67 from Canada. I am no help but you, but there is a lot of great knowledge on this board. I am sure someone has done this, or has really thought about it. Good Luck Bump __________________ Jamie _______________________________ 72 Chevy Cheyenne 350/th350 LWB 03 Chevy Silverado Sporty Shorty 4.8L

12-31-2005, 12:01 PM	#3
Willy Prost Senior Member Join Date: Jan 2000 Location: Arlington, VA Posts: 398	Re: 5-speed in a low hump '67 You should be able to get a high hump cover from one of the board vendors or from the parts board. I have a 3550 tremec in my 71 shortbed stepside. The 3550 will just barely fit with the low hump floor. I got a high hump cover and it makes installing the 3550 much easier. Solved the tight clearence issue also.

12-31-2005, 04:13 PM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: 5-speed in a low hump '67 Your best bet is to subscribe and post a WTB thread on the parts board. You should have no problem finding one. Welcome to the board from South Mississippi. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

12-31-2005, 04:41 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 5-speed in a low hump '67 A bit harder to find, but in my opinion a little better for your situation, try to find a bolt on high hump with no hole. 1/2 ton V-6 (GMC) trucks, and big block trucks with automatics should have them. This way, you can put the hole whyere ever the shifter is instead of making the stock hole bigger becouse it almost lines up.



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