Manifold Nuts....Help!

[Ida4runner]

Leaky manifolds on my 4.7 is forcing me to replace them.
Question:
Any tips or advice on how to get these nuts off without shearing the studs?
Does anything like penetrating oil,heating nuts, moving the steering shaft, body mounts or tire make loosening or getting access easier?
Thanks for any advice!

 

[Fern]

Never have done manifolds before but for breaking free stuff I have used a 50/50 mix of atf and acetone and let it soak in for a few days prior to the attempt of removal.

 

[Ida4runner]

Never have done manifolds before but for breaking free stuff I have used a 50/50 mix of atf and acetone and let it soak in for a few days prior to the attempt of removal.

Thanks for the info,I've read ATF is about the best for getting rusted parts free.

 

[Brian3676]

I lift the motor and remove motor mount. Hit it with penittating oil the day before. I live on the west coast though so not really any issues with as much rust.

 

[Ida4runner]

I lift the motor and remove motor mount. Hit it with penittating oil the day before. I live on the west coast though so not really any issues with as much rust.

Thanks Brian! I was just laying under the runner and it looks like if the motor mounts were gone things would be easier to get at.

 

[blackoutt]

Lots of PB blaster and patience. I got all mine off of a michigan raised 4runner with no issues a couple years ago. Motor mount was only unbolted temporarily to hang the new doug thorley headers on.