In Reply to: 9n Battery hold down question posted by TonyC on August 29, 2019 at 19:29:53:
Two battery hold downs were used, so see which one you have. The Dennis Carpenter Catalog photo may help picture. The early style had two 5/16-24 acorn nuts secured, threaded bolts near the lower front of dash where the hold down bolts attached to. This is the LH style in Carpenter's catalog. The March 15, 1940 MPC will also shed some light –see MANUALS/PARTS forum.
FORD 9N TRACTOR BATTERY HOLD DOWNS: