i can't get the 10mm hex to turn no matter what. i got a huge breaker bar. i even broke the brand new hex socket. (the socket part cracked right down the middle, and the hex part fell out)

if any one did this before how did u do it? do i need to take it in to the dealer to get it removed? or should a local car garage be able to do this? also is there any hard on the steering lock when u put force on it? also with the right tools it should cost anytihing over $20 right? thanks a bunch guys.

this is on a W126 300SD (1984)

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198? 300D ???K - Future DD
1989 300TE 285K - traded in '12
1984 300SD 186K - Sold in 08
1978 300SD 330K - Died in 05