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1960 NP 420 Transmission
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arod44
New User
| Posts: 3
| Joined: 02/13
Posted: 02/17/13
02:03 PM
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Does anyone know the gear ratios for a 1960 NP 420 Transmission?
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Posted: 02/19/13
07:15 AM
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I think you mean an SM420. It's a great granny gear truck transmission. First gear is an admirable 7.05:1. Great for crawling. There is a bit of a gap between second and third but that's fairly common with all the early truck four-speeds which are really only three-speeds on the street. On road you will never use first gear.
First: 7.05:1
Second: 3.57:1
Third: 1.70:1
Fourth: 1:1
Reverse: 6.78:1
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John Cappa
Editor
Four Wheeler
john.cappa@fourwheeler.com
www.facebook.com/fourwheelermag
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arod44
New User
| Posts: 3
| Joined: 02/13
Posted: 03/09/13
08:52 PM
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The vehicle is a 1960 Dodge Power Wagon Town Wagon, owner claims it's the original transmission. VIN is 22181643473. Online I found a site that said it was an NP420 transmission. I didn't know that Muncie transmissions came stock in 1960's Dodges. Thanks.
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Posted: 03/10/13
07:48 PM
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Ooooh! I did not know it was a Dodge!
Great question. I am not familiar with that transmission.
I found this using Google:
6.68,3.10,1.69,1.00, reverse 8.25 on a 63 model
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John Cappa
Editor
Four Wheeler
john.cappa@fourwheeler.com
www.facebook.com/fourwheelermag
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arod44
New User
| Posts: 3
| Joined: 02/13
Posted: 03/11/13
06:07 PM
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Thanks.
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