trying to pull a t5 out of 88 firebird. there is one bolt on the passenger side top that we can not take off. its the bolt that screws the tranny into the bellhousing. we can't get anything on it to turn it.

 

I did mine using a socket on a universal adaptor and a long extension.

 

15mm socket on an extension to loosen it. T45 torx to unthread it the rest of the way.

 

It's easier to get at it if you remove the transmission crossmember, and tilt the motor and transmission back IIRC. Those bolts are a pain in the a** to get at

 

still have not got that one bolt undone. ended up pulling motor and trans all out of the donor car at the same time. i still can't get that top bolt to break free even when it is out of the car. any ideas everything fails. can you use heat on this part of the trans? any ideas will help

 

When I got my T5 the bellhousing was bolted to it. I tried originally to use hand tools to break the 4 bolts loose and it didn't work. I finally got out the impact and a long extension and broke 'em loose. All of 'em were loctite'd in there... Not sure why, but they definitely came out with air tools.

 

If you don't have access to any impact tools, what about a breaker bar? You could try slipping a length of pipe over the ratchet/breaker bar for added leverage.

A lot of people on TGO recommend PB Blaster. I tried it, and it seems to really help. It's a penetrating lubricant that you spray on. You can get it at Advance.