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| | | | Joined: Jan 2007 Posts: 50 Member | | Member Joined: Jan 2007 Posts: 50 | In my search for a pto it would be helpful to know model number for my trans. :hammering: My truck is a 1946 coe 2ton. I think the trans. is original because it is the same as my 46 p.u. Thanks
restoring a 1946 coe wrecker.
| | | | | Joined: Feb 2007 Posts: 190 Shop Shark | | Shop Shark Joined: Feb 2007 Posts: 190 | Just guessing, but isnt the sm420 the trans? I believe so, if its the four speed. Mines a 2 ton and thats what mine has in it. Ops think thats wrong, I have been reading and I think 47 was the first year for the sm420. I am sure the answer will be along quickly though, sorry no help here. | | | | | Joined: Jan 2007 Posts: 50 Member | | Member Joined: Jan 2007 Posts: 50 | This many chevy guys and nobody knows the # of a 46 4 spd ???? :hammering:
restoring a 1946 coe wrecker.
| | | | | Joined: Apr 2005 Posts: 261 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2005 Posts: 261 | The late 1931 throught 1946 4 speed transmission are basically the same for all Chevrolet trucks. There should be a casting date on the RH side of the housing and one on top of the top cover to the rear of the shift lever. During the 1935 year there were two 4 speeds due to a strike at the normal Chevy trans. plant and they made a switch to the WT 4 speed (a Ford trans) for part of the year. The 31-46 trans case p/n is 590524. The PTO housing has the standard SAE 6 bolt cover pattern and a straight cut gear inside.
34 & 35 trucks are the greatest
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