[Bob Lincoln]

Sounds like they had been overtorqued originally. They should never be that hard to remove.

 

[John Wood]

Use the soft Loctite or similar. Even RTV. You just want avoid the bonding that often occurs between a steel bolt and aluminum threads. Anti-seize will work for the threads, but I prefer to use something that provides a little bit of sealing material under the head of the bolt.

 

[dana44]

Agree with both, a little too much loctite from the factory.

 

[KOG]

All of the four speed FWD automatic pans I have removed have been very tight from the factory. No need to do anything odd with the bolts, just clean the threads with a wire wheel and use a torque wrench when reinstalling.