I have a 85 GSL with a 12a and the stud on the cat side of the manifold snapped when i tried to losen the rusty nut. ide rather not have to drill it out so i went to the local junkyard for a replacement part. he had 1 and it was on an 83 12a. his computer said it wasnt compatable but he has been wrong before. Any help here?

 

bump for some help

 

Does the stud still have a little left that you can grab it with a pair of pliers? If you can still grab it you can get it out like that.

 

it does however i was using an air gun so i dont know how torqued down it is haha. plus like i said its terribly rusted and was seized up. on the positive side i have already ordered new studs so they will go back in if i get the old ones out haha

 

Drill a hole in the stud and try the reversable bits.Try heating it up so the lock tight loosens up.I did it before & it worked.

 

i can try that but i still need to know if the 83 manifold will swap 1 for 1

 

get some good **** that will loosen that bolt. stuff stronger than wd-40. cant remember the name of it right now. and then soak it down then try to get it off with pliers

 

Best idea? Get rid of the manifold! Buy a racing beat header and presilencer, you will love the performance increase.