Here's a little more detail on chevyb's offered flywheel as it may help decide on a deal for some folks.
A search of
GMPartswiki using the casting number shows its assigned the part number GM# 3737919. Below is a screen shot of the latest application list I could find there, showing it was used on most 1958-70 Medium Duty Chevy "Big Bolt" trucks (1-1/2 to 2-1/2 ton) with V8's, except trucks equipped with Powermatic automatic transmissions and those having the 427 engine.
There was another listing showing the GM# 3737919 was replaced with a new GM# 3986183 in May 1972. The later GM# shows being used in "big block" equipped Medium Duty trucks as late as 1990.
BTW - chevyb's asking price is down right generous as the later replacement flywheels have asking prices in the $200 - $400+ price range. Get it while the getting is good!
Best of luck with your sale chevyb!
