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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#20775 06/23/2004 6:57 PM | Joined: Aug 2000 Posts: 197 Member | | Member Joined: Aug 2000 Posts: 197 | The 3/4 ton yoke on the sm420 is different than the 1/2 ton. The 3/4 ton version is beffier. The 3 speed yoke will not interchange. You will need to find a sm420 from a 1/2 ton to get the correct yoke.
Jason
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