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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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| | | Forums66 Topics126,776 Posts1,039,271 Members48,100 | | Most Online2,175
Jul 21st, 2025 | | | | Joined: Aug 2014 Posts: 15 New Guy | | New Guy Joined: Aug 2014 Posts: 15 | How can I tell what type of trans is in my 1950 6400? | | | | | Joined: Mar 2012 Posts: 211 'Bolter | | 'Bolter Joined: Mar 2012 Posts: 211 | | | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | It would have been built with a SM420 4 speed. | | | | | Joined: Jan 2011 Posts: 32 New Guy | | New Guy Joined: Jan 2011 Posts: 32 | Should have an SM420 in it if stock. This is a 4 speed, very low 1st gear trans. Look at the passenger side of the trans, it should have a PTO or PTO plate in about the middle of the trans. If it has a PTO on the driver's side down low, you may have an SM465, another well built trans.
1949 1.5 Ton 4400, 1969 c10, 1989 c1500, 1990 K2500, 2010 C1500 Crew
| | | | | Joined: Aug 2014 Posts: 15 New Guy | | New Guy Joined: Aug 2014 Posts: 15 | Should have an SM420 in it if stock. This is a 4 speed, very low 1st gear trans. Look at the passenger side of the trans, it should have a PTO or PTO plate in about the middle of the trans. If it has a PTO on the driver's side down low, you may have an SM465, another well built trans. this tranny has a plate on the passenger side but also has a pto on drivers side. Is it certain it is a 465? Also I have read that most bell housing wil marry this trans with a 350. Do you know if it is true or not. | | |
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