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Canadian Poncho Homepage -> Canadian Poncho -> 65-70 Full Size Power Train Tech Forum -> Gear Vendors Overdrive, on a Muncie M20
Post Info TOPIC: Gear Vendors Overdrive, on a Muncie M20
cdnpont


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Gear Vendors Overdrive, on a Muncie M20
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Since the topic of overdrive is hot,

https://www.rcnmag.com/d-i-y/updated-drivetrain

https://www.gearvendors.com/product/manual-4-speed-muncie-m-202122-27-spline/



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65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 
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This would be the way to go in Carl's 427 Strato Chief.

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4SPEED427


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It's busy today but I had a quick peek.

I like it!

Gonna read more when I get time.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
seventy2plus2


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I'll give this a look. In my Parisienne, I'm buzzing 3000 RPM @ 80 mph. I think that was the cause of building up too much crankcase pressure and blowing oil out of my front seal on the way to Iowa a few years ago. And that's with 3.07 gears, same as what Carl has.

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70 2+2 convertible
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Kevin66427


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Planning on doing that to mine too.



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Kevin

1966 Pontiac Grande Parisienne 427/4spd

1966 Lincoln Continental Convertible

2000 Jaguar VDP Super V8

2008 Toyota Avalon XLS

2009 Mazda 6
4SPEED427


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It would be a great addition Kevin. I would likely double the current miles on my car in about 5 years if I had overdrive!

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)
dualquadpete


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Thinking same for 409 but need to know cost of unit, then factor in cost of D/shaft shortening, etc. My 52 Torpedo Back[lost in garage fire] had Tremic 5 speed & was excellent on fuel with SBC dualquad & 3:42 gears!!! Got 28 MPG+ on trip to West Virginia a few years back.

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