Manifold studs
Have fun bud, the shock tower on our f150s block the front 4 studs and they are a bugger. If you dont have a lift jack its even tougher and to get to them you must take the motor free and jack it up a inch or 2 to get to them. If they break thats more fun, once they break no tool can get them out no matter what drill style you use. You must weld to the broken stud then use some vice grips and start turning. Overall if none break your looking at 10 hours for both sides and if they do break just double it. Its probably the toughest thing to do on our trucks and some people just pull the motor out. Just do not take the heads off, once you do that then you need new gaskets that cost a lot to get. Good luck
Trending Topics
I just had to remove my passenger side manifold to be machined because it was warped,
Two day job, I don't care what it costs but buy a good stud extractor, I have the MAC tools kit.
Never broke a stud, did not take the engine mount apart. Un-hooked both collectors, removed starter and got the manifold out and back in without a problem, just had the truck up on ramps. Be patient, thats all I can say. Drivers side is the easy one anyways. Have fun.
Two day job, I don't care what it costs but buy a good stud extractor, I have the MAC tools kit. 

