I am having problems with my 4.7 stalling. after some trial and error i found the 8th cy rocker arm had fallen off. not sure what i should do???? replace just the one if i can buy one...or replace all 16 which means removing the timing chains....has anyone else had this happen and if so what worked or didn't work...any insight is greatly appreciated

 

There are a few threads on 4.7's throwing rocker arms. Most put them back on but if it because consistent then there may be excessive play in the valve train and they would then at the point need replacing.

 

any ideas on repalcement rockers that will be close to or better gas mileage than original ones? all that I seem to find is performance ones

 

Well i was speaking about replacing them with OEM replacements. If you need a part number LMK.