[Flyman 27]

I guess my main point here is that back in '92, GM said that the single 5/16" drain is insufficient for the job. They recommended cleaning out the 5/16" drain AND adding the 3/8" drain hole to help the drainage problem.
Iv'e read a lot about the starter problems here but have not read about adding the drainage hole, even tho it was recommended to Dealers by GM way back in '92.
Just sayin, if you have to do the job, maybe you should follow GM's recommendations on how to fix the known problem.

Dan