6 speed tranny question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

49gmc · 09-19-2010, 02:20 AM

i wasnt sure weather to ask this here or in the drivetrain forum but ima try this first.

okay, what im wondering is does anybody make a 6 speed manual with granny frist and double overdrive? like 4th being the direct drive gear and the other two being overdrives. basically a sm465 with 2 more gears. does it exist?

raycow · 09-19-2010, 05:06 AM

Nope, it would have to be a granny 1st and single overdrive like an NV5600 or a car type 1st and double overdrive like a T56.

However, you might be able to bolt up a Gear Vendors OD to an NV4500.

Ray

mikemileski · 09-20-2010, 12:15 PM

The Borg Warner T-56 has just what you're looking for. See link below.

http://www.tacreationsusa.com/manual_trans.htm

Mike Mileski
Tucson, AZ

49gmc · 09-22-2010, 01:51 AM

thanks for the input ray thats what i figured.

and mike, im looking for a lower first gear, but thanks for the link anyway!

Davetopay · 09-22-2010, 07:26 AM

I think you are looking at a med duty truck trans for that kind of set up.

Eaton Fuller 5406b and friends..... http://www.vibratesoftware.com/html_....htm#FSB-5406B

These are going to be LARGE case units with twin counter shafts, and they aren't even double OD. Not very suitable for swapping into many light truck applications, but anything can be had with money.

49gmc · 09-22-2010, 10:00 PM

thanks dave, thats alot closer to what im lookin for

09-19-2010, 02:20 AM	#1
49gmc Registered User Join Date: Oct 2008 Location: mineola texas Posts: 71	6 speed tranny question i wasnt sure weather to ask this here or in the drivetrain forum but ima try this first. okay, what im wondering is does anybody make a 6 speed manual with granny frist and double overdrive? like 4th being the direct drive gear and the other two being overdrives. basically a sm465 with 2 more gears. does it exist? __________________ __________________________________________ -1949 GMC 100 longbed -1972 chevy c/20 suburban -1982 chevy k-5 blazer

09-19-2010, 05:06 AM	#2
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: 6 speed tranny question Nope, it would have to be a granny 1st and single overdrive like an NV5600 or a car type 1st and double overdrive like a T56. However, you might be able to bolt up a Gear Vendors OD to an NV4500. Ray

09-20-2010, 12:15 PM	#3
mikemileski Registered User Join Date: Jul 2009 Location: Tucson, AZ Posts: 66	Re: 6 speed tranny question The Borg Warner T-56 has just what you're looking for. See link below. http://www.tacreationsusa.com/manual_trans.htm Mike Mileski Tucson, AZ

09-22-2010, 01:51 AM	#4
49gmc Registered User Join Date: Oct 2008 Location: mineola texas Posts: 71	Re: 6 speed tranny question thanks for the input ray thats what i figured. and mike, im looking for a lower first gear, but thanks for the link anyway! __________________ __________________________________________ -1949 GMC 100 longbed -1972 chevy c/20 suburban -1982 chevy k-5 blazer

09-22-2010, 07:26 AM	#5
Davetopay Registered User Join Date: Oct 2009 Location: Leesburg, VA Posts: 424	Re: 6 speed tranny question I think you are looking at a med duty truck trans for that kind of set up. Eaton Fuller 5406b and friends..... http://www.vibratesoftware.com/html_....htm#FSB-5406B These are going to be LARGE case units with twin counter shafts, and they aren't even double OD. Not very suitable for swapping into many light truck applications, but anything can be had with money. Last edited by Davetopay; 09-22-2010 at 07:29 AM.

09-22-2010, 10:00 PM	#6
49gmc Registered User Join Date: Oct 2008 Location: mineola texas Posts: 71	Re: 6 speed tranny question thanks dave, thats alot closer to what im lookin for __________________ __________________________________________ -1949 GMC 100 longbed -1972 chevy c/20 suburban -1982 chevy k-5 blazer



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