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#929806 03/23/2013 10:28 AM
Joined: Dec 2010
Posts: 62
O
Wrench Fetcher
Wrench Fetcher
O Offline
Joined: Dec 2010
Posts: 62
I just put 3.55 ring and pinion in 1948 1/2 ton torque tube, I have a 3 speed I can buy a 4 speed for $ 50.00 .I am not pulling any weight,I would like to have a lower gear.I do not want to have to slip the clutch on hills from a dead stop, also when pulling in to tight spaces, is that granny gear a good idea? Thanks

Joined: Jan 2001
Posts: 5,337
P
'Bolter
'Bolter
P Offline
Joined: Jan 2001
Posts: 5,337
I always likes the lower reverse gear, especially when backing a trailer.
Also, all of the three speeds you normally use are synchronized.


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R
Shop Shark
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R Offline
Joined: Feb 2006
Posts: 1,867
Just remember to grab the crap that goes with the 4 speed. Should be a different floor panel and early sm420s are the only ones with the torque tube adapter for the enclosed drivelines. I think from 1948-1954? Anything later will have an open driveline and you'll need to find another back piece for the transmission.

Jeff


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Leo Offline
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I have exactly what you are talking about and I'm quite happy with it. It's up to you if you want to use first gear.

Joined: Aug 2004
Posts: 1,418
ODSS Lawman
ODSS Lawman
Joined: Aug 2004
Posts: 1,418
I have an SM420 in my truck and I love it. I will say that granny gear is more for fun really than for much practical use. I use it for crawling into the garage, and when I am at Stovebolt HQ (like Homecoming, please see the thread in the ODSS section, PLEASE COME!!!) rolling around on the farm.

Keep in mind that first gear is not syncronized so you have to be at a stop to get in gear.


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