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04-12-2013, 12:53 PM
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#1 |
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Registered User
Join Date: Mar 2008
Location: greensboro nc
Posts: 9
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Need some help
Hello everyone!
I have a 69 3/4 ton pick up. It has a SB 400(checked ID stamp) with 4 speed granny trans. I want to know what 6 speed (manual) options would be best for me? Would that improve highway dirving? I'm a do it your selfer Thanks for any answers! |
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04-12-2013, 02:14 PM
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#2 |
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Registered User
 
Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
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Re: Need some help
Welcome to the board. I have been looking at the 5 speed manuals as well. It seems the NV3500 is becoming a popular choice for OD manuals. 6 speeds may be a bit more difficult. I am sure it has been done...
__________________
1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 |
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04-14-2013, 05:41 PM
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#3 |
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Registered User
Join Date: Mar 2008
Location: greensboro nc
Posts: 9
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Re: Need some help
thank you so much
Never got replies when I joined the site years ago I'm really looking forward to speaking with all the experienced guys out there Would love to get some ideas [size=1]Posted via MobDevice[s/size] Last edited by jwhe606; 04-14-2013 at 05:47 PM. Reason: added statement |
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04-14-2013, 06:20 PM
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#4 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,504
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Re: Need some help
A Gear Vendors O/D is going to be an easy addition. They can be found used even with the four speed adapter. It allows you to split gears and have an overdrive gear.
Couple of questions come to mind. Do you tow much? Is your truck a factory manual trans. truck? What gear ratio and tires are you running now?
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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04-14-2013, 09:26 PM
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#5 |
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Registered User
Join Date: Jul 2011
Location: Farmville, Va
Posts: 3,027
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Re: Need some help
How about a 6 speed from a wrecked Vette?
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04-17-2013, 10:16 PM
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#6 |
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Registered User
Join Date: Mar 2008
Location: greensboro nc
Posts: 9
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Re: Need some help
Hello guys!
Sorry for the late response. My truck is factory except for 33/12 tires it has 8 lug 12 inch wide wheels in the back and 8 lug 8 in in the front (I believe) Im not sure what the gear ratio is for this truck. It hasn't been modified Will I have to modify the driveshaft with gear-vendors? I will post pics when I figure that out Thanks for the responses!!! |
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04-17-2013, 11:26 PM
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#7 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,504
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Re: Need some help
The 400 SB was not factory just to be clear. A 396/400/402 BB was.
Remember a O/D installation or swap is not something you are likely amortize through fuel savings. It primarily provides lower engine speeds at cruise and in the case a G/V allows you to split gears making it easier on the engine and less RPM drop between shifts as would a AA Ranger O/D. A Gear Vendor O/D does require modifications to the driveshaft. It may take you a while to find one used. But when it is in you will love it. A Ranger mounts in front of the trans pushing it back so there is a shifter issue. NV4500 or NV5600 trans swaps are possible but you need to sort out a number of installation issues. You need to us an adapter plate to keep the stock clutch linkage (with modifications) or install a replacement bellhousing and change to a hydraulic clutch. Then there is a trans. mount issue to. The plate adapter retains the stock mounts at the bellhousing. Many swaps use a rear auto. trans. style mount. So either way there are modifications involved. The G/V unit bolts to the rear of the trans. and other than the driveshaft cut is fully reversable. Advance Adapters carries the swap parts. http://www.advanceadapters.com/produ...ter-plate-kit/ Gear Vendors http://www.gearvendors.com/cg2wdt.html
__________________
Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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04-17-2013, 11:32 PM
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#8 |
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Senior Member
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,339
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Re: Need some help
Hey jwhe606 ...
Just want to say  to the forums and  from Ohio. 
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A husband can be right...or...A husband can be happy.  67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk.  1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc   JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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04-19-2013, 08:01 AM
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#9 |
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Registered User
Join Date: Mar 2008
Location: greensboro nc
Posts: 9
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Re: Need some help
Thanks for the info!
The previous owner let me know that he replaced the engine (71 truck) Its time to start shopping. Later! |
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