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Old 07-09-2002, 10:23 AM
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Question Tranny Advice Needed

I plan to buy a 351w crate motor that will be putting out 400hp/400ft-lbs torque. I have been racking my brain trying to figure out what tranny to use. It will be going in a street rod where space is limited. The easiest way will be to go with the C4 because of reliability and compactness. I don't plan to race the car (maybe from a street light every once in a while), and I do plan to run it on the highway every once in a while. Deep down, I want a 5-speed with overdrive, but I would have to get a rather large tranny to handle the torque (Tremec TKO, Richmond, etc.). I could make the AOD fit, but apparently there is a trick to make it work right with a carb, and I have heard some complaints about hard shifting into O.D.. Anyone else been in this situation? Any advice appreciated.

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Old 07-09-2002, 06:46 PM
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OK I have a 30 ford street rod with a 327 engine and a Muncie 4 speed transmission. I think you would be much better off with the automatic. Apparently 95% of the rodders out there agree, because if you go to any rod run, the automatic is in the vast majority of the cars. The muncie I have is ok but I would rather have the automatic if I had it to do all over again. Here is why. The biggest problem is the shifter comes up between your legs which is not comfortable. The shift arm had to be straitened so it would clear the seat when you shift. Sometimes when you push the brake and clutch pedals in at the same time they will bind a little bit. It was nearly impossible to get the clutch linkage and two pedals in the tiny space you have to work with and some of the parts I had to fabricate myself. The cost of the Munci is three times what the automatic sells for. In city traffic it takes a lot of effort just to drive the car because you are constantly shifting gears. I would definatly go with the automatic. Just my 2 cents worth.
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Old 07-10-2002, 05:06 AM
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Thanks Jim. I have been wrestling with this transmission decision for a while, and all signs point away from a manual. My top priority is an overdrive, but that's giving me trouble too. Do you know any guys with an AOD in a 30's street rod? I'm curious about how much floor space it takes up. I also want to find someone with an AOD behind a carb'd engine.
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Old 07-10-2002, 06:53 PM
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I have never seen a street rod with an overdrive but I am sure there must be some out there. Doesn't seem to be a popular item. You might log onto nsra.com site and look around. Also, you could go to one of their major events where thousands of street rods show up find one and question the owner, to find out what is involved with this.
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Old 07-10-2002, 08:39 PM
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Maybe you should just go with the c4 and 3.55s or something thats not too radical on the street. I mean its got to be one of the most reliable trannys ever built and its small. Sure you wont have overdrive but will you drive it on the highway a lot? Or maybe if you are concerned about space and OD you could look into a gear vendors overdrive unit. Although they cost 2200 dollars they are absolutely bullet proof and turn a c4 into a 6 speed automatic by splitting the gears. Maybe you should look into that. http://gearvendors.com/f2wd3s.html It might save you money in the long run actually because no stock AOD will put up with 400ft-lbs for very long, and with the cost of a new tranny tunnel. I am actually thinking about putting an AOD into my 66 mustang because i have space, and was thinking about the same thing about a carb with an AOD. There has to be some kind of part that you add onto the linkage or something. But anyways just thought id trow in my opinion.
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Old 07-10-2002, 09:25 PM
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Well well well look what i found. This website is exactly what I er, we were talking about. They have EVERYTHING you would ever need to know about ford automatic overdrive transmissions, including retrofitting to carberated applications. They even sell a system to put in an AOD-E into a carbed car. check it out man. www.baumannengineering.com
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