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#83213 09/21/2007 2:38 AM | Joined: Jul 2007 Posts: 224 'Bolter | | 'Bolter Joined: Jul 2007 Posts: 224 | i got a 46 2 ton that has a sm420 trans in it
the one that was in it sounded like a phantom
jet engine found another in a old junk yard it sounds much better my question is were these trannys
always a little noisy? philip | | |
#83214 09/21/2007 3:33 AM | Joined: May 2004 Posts: 920 'Bolter | | 'Bolter Joined: May 2004 Posts: 920 | Mine whines a bit in granny and reverse but beyond that it is relatively quiet. And it's a 1/2 ton. I also covered my floor with dynomat. I'm sure that helps.  | | |
#83215 09/21/2007 3:49 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | I don't think that a '46 would have the SM420, it didn't come out 'till mid-'47. You should have the staight cut gear 4 speed, with the reverse lock out lever on the shifter. That one will howl due to the way the gears are cut.
Bill Burmeister
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#83216 09/21/2007 12:56 PM | Joined: Jul 2007 Posts: 224 'Bolter | | 'Bolter Joined: Jul 2007 Posts: 224 | its a sm420 someone must have swapped it out. | | |
#83217 09/21/2007 2:09 PM | Joined: Dec 2003 Posts: 1,061 'Bolter | | 'Bolter Joined: Dec 2003 Posts: 1,061 | I've done the swap on my 46 1 ton. Not really too hard and the original bell housing in your year might be more compatible than later years.
My SM 420 runs quiet and smooth, no whines. There is a lot of info available on rebuilding these things and parts are not real hard to find. They are also easy to rebuild if you are so inclined.
1946 1-ton Panel
1952 1-ton Comml. W/Grain Body
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