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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Overdrive transmission

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Old May 21, 2009 | 10:12 AM
  #1  
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snortf100
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Overdrive transmission

Just wondering if anyone has succesfully installed one of these overdrive transmissions into one of our trucks, 2X2 or 4X4. I have wanted to get the RPM’s down and leave the driveline gears alone but the price and modifications were just to expensive to warrant the change.

High Impact - NV4500 5spd
 
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Old May 21, 2009 | 10:47 AM
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tooterturtle
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From: Kirkland, WA
Hey Snort:

What type of engine and trans are you now running? If you have a C-4 or C-6 trans, you can leave the trans attached as is and add a gear-vendor over/under splitter to the tail. It will cut your RPM by 25% at the final drive and give you more like a six speed trans in the process. Just a thought.
 
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Old May 21, 2009 | 10:52 AM
  #3  
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snortf100
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Originally Posted by tooterturtle
Hey Snort:

What type of engine and trans are you now running? If you have a C-4 or C-6 trans, you can leave the trans attached as is and add a gear-vendor over/under splitter to the tail. It will cut your RPM by 25% at the final drive and give you more like a six speed trans in the process. Just a thought.
The truck I have now is a 1966 4X4 428 FE, NP435 with the Dana21.
 
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Old May 21, 2009 | 10:58 AM
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tooterturtle
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From: Kirkland, WA
Sorry, my bad...I didn't see the link on your first post about manual trans.
 
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Old May 21, 2009 | 06:46 PM
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garbz2
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From: Glendale Arizona
Ranger Overdrive

Here is a really good site with a few options. I will be purchasing a ranger unit for my 69 Highboy Crew Cab with a FE and 435.

Garbz
 
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