69firebird

iTrader: (14)

Hi,
My tranny is leaking really bad, I got up underthere and found it is a bolt hole its comming out of the bolt wont go in and tighten.

so here my question, can I run a tap up through there and make the threads nice again, or do I need to make a larger size hole and do it that way?


also does anyone know what size those bolts are and the thread pitch so i can buy a tap and try it, i put the bolt back in like a dumbass so i dont want to get all dirty and then have to go to the store
thanks
alot
ed
firebird455@onebox.com

kp

iTrader: (34)

Depends which bolt, most bolts on a TH350/400 are 5/16-18 (think its 18 pitch, whatever 5/16 coarse thread is). Its pretty common to pull threads out after a few rebuilds. Depending where its at sometimes you can just use a little longer bolt to grab a few more good threads, some pan bolts are threaded all the way through so in a pinch you can stick a nut on top and when its apart you can helicoil the stripped holes..

69firebird

iTrader: (14)

its the long on that holds the shifter linkage bracket
Im going to try to put the long bolt up there without the bracket on teh underside and see it it will grab tomorrow.
thanks ill look for the tap
ed