John Posted December 13, 2019 Share Posted December 13, 2019 Ran across this today. Been around long enough I don't remember what it fits. May have come from a Buick/Pontiac dealer. Didn't have time to clean it and look for stamping, tag or casting numbers. Input shaft is 10 spline. Look familiar to anhyone? Link to comment Share on other sites More sharing options...
John Posted December 13, 2019 Author Share Posted December 13, 2019 Whatever was written on the tag is invisible now. Link to comment Share on other sites More sharing options...
pont35cpe Posted December 13, 2019 Share Posted December 13, 2019 What is the size(dia.)of the input shaft 1 1/8" or 1 1/4"? It looks like my `36 Buick 40 series, but doesn`t have the front collar, so I`m guessing `37 Buick 40 series if 1 1/4" shaft, or `38 if 1 1/8" shaft. Link to comment Share on other sites More sharing options...
John Posted December 13, 2019 Author Share Posted December 13, 2019 Thanks for your quick reply! I won't be able to get the measurement until sometime next week. Would there be any identifying numbers on the case if it is late 30's Buick? Link to comment Share on other sites More sharing options...
Bloo Posted December 13, 2019 Share Posted December 13, 2019 (edited) It is late 30s Buick Special.... If it were Pontiac, it would have the speedo gears below the u-joint, a front bearing retainer (but no sleeve), and a Chevrolet-style torque tube ball. If it were Oldsmobile, it would be configured for an open driveline. Edited December 13, 2019 by Bloo (see edit history) Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted December 13, 2019 Share Posted December 13, 2019 (edited) I agree with Bloo. No doubt. That will mount behind any small series [ 248 or 263 ] manual engine through the '53 Special. Ben Edited December 13, 2019 by Ben Bruce aka First Born (see edit history) Link to comment Share on other sites More sharing options...
John Posted December 13, 2019 Author Share Posted December 13, 2019 What's different from tranmissions used with the 320 engine? Link to comment Share on other sites More sharing options...
Bloo Posted December 13, 2019 Share Posted December 13, 2019 (edited) The big Buick transmission is bigger, much heavier duty, and has a 6 bolt top cover. It also has a shift tower that sticks up high like most other transmissions of the period. Edit: found a picture. Edited December 13, 2019 by Bloo (see edit history) Link to comment Share on other sites More sharing options...
pont35cpe Posted December 13, 2019 Share Posted December 13, 2019 6 minutes ago, John said: What's different from tranmissions used with the 320 engine? Bigger/longer with 6 bolt top shift plate. `39 is the first year for column shift trans. Like Ben said it will fit the small inline eight thru `53. The size of the input shaft will tell if it came from a `37 or `38. Link to comment Share on other sites More sharing options...
John Posted December 13, 2019 Author Share Posted December 13, 2019 Thank you all who replied! Link to comment Share on other sites More sharing options...
lump Posted December 17, 2019 Share Posted December 17, 2019 Don't give up on that paper tag too soon. I have had some good luck from time to time by using a powerful flashlight shone through the tag from the backside, or shone at the front side from the edge, horizontally. SOMETIMES the markings will have been pressed in hard enough that you can create shadows to see impressions of letters or numerals. Or, from behind sometimes old ink will react differently to the light. This trick has worked for me, about 30-40 % of the time with old auto parts. Good luck! 1 Link to comment Share on other sites More sharing options...
John Posted December 19, 2019 Author Share Posted December 19, 2019 The shaft is 1-1/4" so apparently it fits a '37. Tag is gone now so can't try the flashlight trick---it probably came off during handling last week. Will be looking for a new home for it now that it's identified. Thanks again to all who replied. Link to comment Share on other sites More sharing options...
pont35cpe Posted December 19, 2019 Share Posted December 19, 2019 7 hours ago, John said: The shaft is 1-1/4" so apparently it fits a '37. Tag is gone now so can't try the flashlight trick---it probably came off during handling last week. Will be looking for a new home for it now that it's identified. Thanks again to all who replied. With the 1 1/4" input shaft and no collar, is `37 40 series only. It may fit the `38-`53 bell housing if the hole is large enough for the larger input shaft to pass thru, but would have to have a clutch disc with the 1 1/4" center hole. Link to comment Share on other sites More sharing options...
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