North American Turbocoupe Organization

Oil drain plug size for 88 tbird
Charlesw Offline
Junior Member
Does anyone kjnow what size the oil drain plug is on an 88 tbird mines all striped out and i want to get a new one

vegas_ss Offline
Senior Member
Is it the drain plug or the pan threads that are stripped?  Rockauto shows this as the replacement which should be easy enough to find locally.  If the pan threads are stripped, they do make a larger drain plug that will re-thread (tap) the pan.  I had to do that a few years ago and it has been working fine/no leaks.  If you need to go that way, just work slow, make sure its square and once threaded in ~ 80% remove and clean the drain plug and pan thread area, run a magnet around the drain plug hole and may even pour a little oil in and let it drain out to help remove any debris. 

Dorman Drain Plug
1987 TC, 5sp, Boport Stage 3 Head/2.1 Cam
1996 Impala SS, DCM, Borla Cat Back, too much other stuff!!! (SOLD)
2009 Pontiac G8 GXP 6M, 6.2l LS3, Kooks Long Tube, Hi Flo Cats, Mild Cam

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