Hi, well ive been back and forth, i have a 300 efi and a 460 and i think ive settled on using the 460 in my 79 f-150 4x4. It had a 351m that i got rid of, my questions are on the ring gear and being internally balanced. This 460 that i got had previously been swapped in place of a 351m, the ring gear is chewed up pretty bad. its got 184 teeth, i was wondering if maybe they used an externally balanced flywheel, i believe this engine is internally balanced, no weights on the crank behind the harmonic balancer. The block code is DOVE-A. The bellhosing they used looks to be exactly the same as mine that as on my 351m. Ive also heard that if you get the wrong clutch pressure plate it wont fit inside that bb-bellhousing of a 351m. So basically im just looking for some guidance on what i should do as far a ring gear, and flywheel? I dont have the money for a L&L kit, im kinda a cheapo. thanks!