I need to know what size transmission bolts are on the S13 transmission, The stock transmission bolts from a 240sx dont work only the bottom ones do. The top bigger ones Im guessing are 11mm. The stock ones are 12mm. They go in not even a quarter of the way and they stop. Please help.

 

what happened to the bolts you took out?

The ones I had were all 14MM heads I think...

 

I remember them being 14mm, could be 16mm

 

i took a walk out and thier 14mm ...