Dsk78 Posted September 4, 2017 Report Share Posted September 4, 2017 Ok so I'm new here and I'm not sure but I have a 1947 Plymouth special deluxe coupe but motor is no good tranny seems to be OK but I bought a running 1952 desoto 252 with a fluid drive but my question I will the 3 speed off the 218 work on the desoto Quote Link to comment Share on other sites More sharing options...
plyroadking Posted September 5, 2017 Report Share Posted September 5, 2017 Yes but you'll have to swap the input shaft as the fluid drive's is a lot longer Quote Link to comment Share on other sites More sharing options...
DonaldSmith Posted September 5, 2017 Report Share Posted September 5, 2017 A DeSoto motor is about 25 inches long; Plymouth's is 23 inches. Don Coatney put a DeSoto engine in a Plymouth, and the info is here somewhere. It took some modifications to fit. Quote Link to comment Share on other sites More sharing options...
Dsk78 Posted September 5, 2017 Author Report Share Posted September 5, 2017 Thank you for the info greatly appreciated Quote Link to comment Share on other sites More sharing options...
wayfarer Posted September 5, 2017 Report Share Posted September 5, 2017 Your existing bellhousing is OK but expect some issues if you use the 218 flywheel....start with a 'normal' wheel (anything but the 201-208-218) and save some work. Quote Link to comment Share on other sites More sharing options...
greg g Posted September 6, 2017 Report Share Posted September 6, 2017 You say you have a Desoto with fluid drive, but what transmission does it have? Its not a trick question, fluid drive is not a transmission. Quote Link to comment Share on other sites More sharing options...
Conn47D24 Posted September 6, 2017 Report Share Posted September 6, 2017 The shorter input shaft and correct retainer are available on ebay as a pair. Fyi Quote Link to comment Share on other sites More sharing options...
MarkAubuchon Posted September 8, 2017 Report Share Posted September 8, 2017 couldn't you just the using the transmission, bell housing, linkage, clutch pressure plate, flywheel and clutch from the 47 motor on the Desoto motor? forget about the fluid drive completely. if the Desoto motor is a 25 incher, may have to alter the radiator Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted September 8, 2017 Report Share Posted September 8, 2017 As was mentioned if you use the 218 flywheel bolted to the Desoto crankshaft the crankshaft offset is different and your starter will not mesh correctly with the flywheel. I had to modify the 218 bell housing as pictured below to correct this problem. 1 Quote Link to comment Share on other sites More sharing options...
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