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Old May 9, 2008 | 02:24 PM
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overdrive

does anybody know if there is an overdrive trans for a 79 f-250 with 351m
 
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Old May 9, 2008 | 03:23 PM
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thanks maybe it would be easy and cheaper to just change motors seeing how that ones is kind of worn
 
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Old May 9, 2008 | 08:42 PM
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The AOD is not made with a 351/400 bellhousing pattern. The E4OD came behind 460's, but they are computer controlled. You would need a stand alone transmission controller to make it work.

You didn't specify whether you were referring to an auto or a manual transmission. Some OD manual transmission swaps include the ZF and the NV4500 5 speeds.

Another option is an add on OD unit such as those from Gear Vendors or US Gear. They are a little bit expensive at about $2500. Not only will you get OD out of it, it will double the number of gear selections you currently have. A 3 speed auto will become a 6 speed. Will also give you the option of splitting gears, which can help when towing.

Jason
 
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Old May 9, 2008 | 08:51 PM
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Thease guys (Lentech Automotive Performance) make a AOD with a removiable bell and a bell for a 460 that should worlk with your M.
Leadmic
 
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Old May 9, 2008 | 08:57 PM
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through jegs you can get some real tough trannies that can hanle serious horse power, and there pretty reasonably priced and most of them have overdrives, but there manual.
 
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Old May 9, 2008 | 10:21 PM
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to the guys that helped with my tran? thank you.
 
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Old May 10, 2008 | 12:58 AM
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Have you looked into Gear Vendors? It bolts onto the back of your transmision and allows you to split gears with a final overdrive. It is a lot easier than changing to an AOD transmision and it works great. You can "manually" shift it in and out of OD or leave it on automatic and it will shift into OD around 40 MPH.

I put it in my 79 F350 and it works great.
 
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Old May 11, 2008 | 09:04 AM
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overdrive

Originally Posted by F350 Strait
Have you looked into Gear Vendors? It bolts onto the back of your transmision and allows you to split gears with a final overdrive. It is a lot easier than changing to an AOD transmision and it works great. You can "manually" shift it in and out of OD or leave it on automatic and it will shift into OD around 40 MPH.

I put it in my 79 F350 and it works great.


can you tell me were you got yours from because i have no idea were to begin to look. thanks
 
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Old May 11, 2008 | 09:04 AM
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overdrive

Originally Posted by F350 Strait
Have you looked into Gear Vendors? It bolts onto the back of your transmision and allows you to split gears with a final overdrive. It is a lot easier than changing to an AOD transmision and it works great. You can "manually" shift it in and out of OD or leave it on automatic and it will shift into OD around 40 MPH.

I put it in my 79 F350 and it works great.


can you tell me were you got yours from because i have no idea were to begin to look. thanks
 
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Old May 12, 2008 | 07:06 PM
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I got mine through a machine shop/performance shop that did the machining on my 460. I read about the Gear Vendor OD in a Hot Rod Magazine article and found their website on line.
 
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