Looking for OD options

[j41385]

Hey guys, I have a c6 in my 72 right now and I need an od. Seems like my options are pretty limited. I could Get a Gear Vendors, Seems pretty expensive though, plus has electronics. The E4od is Another option, but again Computer controlled. The AOD is a maybe, but I dunno what to do for a flex plate on my 300. But, I just found the US Gear V2od.
http://www.usgear.com/v2od.htm
It is cable actuated.

I'm really not interested in Manual Transmissions, or the Generic Motors 700r4.


Any Thoughts or Ideas on any of these ideas?

Thanks.

[craftsman]

I'm not sure, but (craigwell) over on fordsix is running an aod behind a 300, maybe you could see what he did to match it up.

[averagef250]

Just my experience, but don't waste your time or money on a GV or other add on overdrive a 4 speed if it doesn't have lockup.

Lockup and overdrive are both necessities if you want mileage. One without the other is pointless.

I'd go for an updated E4OD with an aftermarket controller or better yet try to make the stock controller work. All it probably needs is tach signal, TPS and driveshaft RPM.

[averagef250]

The controller is in the EEC, but you can likely get the EEC working on a carb engine by running a tps and tach wire off the distributor.

If wiring scares you just buy the aftermarket controller.

[MadMaxetc]

For the flexplate, you should be able to get one for the 300 that had a C4.

I would try to get the AOD to work.

[j41385]

Well it sounds like the AOD is really tempermental, and not the most stout tranny avalible.

So, I think I am thinking more and more about an OD add on to the c6. Can't decide which one to go with. Still kicking Ideas around.

But I am curious about the e4od. Would I be able to use my shifter linkage? Does it take the same amount of power to run as a c6?
Anything else I would need to run it besides a Baumann controller? Flexplate? If I go electronic, would the e4od be preferable to an AODE?

[averagef250]

TC lockup is good for a few hundred RPM at cruise. lockup is very important, especially for low RPM grunt engines like the 300. The lower the RPM, the less the efficiency of the TC.

In a turbodiesel situation a lockup tranny VS a non-lockup tranny can easily make a 100 HP difference in performance. In a heavily boosted engine the TC locking can feel like hitting a "go button". Without converter lock a brute torque engine will simply slip the converter right out of the engine's torque peak range whenever you lay into it. Granted, in a gas engine you don't need to load the engine to make power, but the efficiency concern is still big. With lockup the converter isn't slipping, you have eliminated a huge source of added heat.

My guess is the E4OD is far more efficient than the C-6. The E4OD is the most modern transmission you can put behind your six and the E4OD has huge amounts of aftermarket support since countless powerstroke guys have blown them to bits and necessitated better parts and upgrades.

[cdeal28078]

You can get manual 2nd in an AOD by pulling the tranny into 1st position, when the tranny shifts to second move the shifter to D and back into 1st quickly. It will stay in second until you shift it to D or slow down enough for it to go back into 1st.
clint