Here for your consideration is this NOS Mopar big block ( 400 and 440 motors) oil pan dipstick, Chrysler part # 3698500.  New in original Mopar package.  Never used or installed.  This is shown in the Chrysler Parts Catalog as being for used on 400 and 440 motors after January 1972.  Just taken out of the package here to show the condition and details closer up.  It is now back in package and sealed up.  Still nice and clean and not rusty, pitted, or damaged.  This oil dipstick tube has an overall length of approx. 27-1/4" long overall, with approx. 21-3/4" inside tube and about 5-3/4" outside tube.  Perfect if yours is damaged, rusting, or missing. Getting hard to find in NOS Mopar.  Free 48-state USA shipping!  Thanks for stopping in to look and bid!