I need one from a JDM B-series tranny. S1, Y1, J1, YS1, I don't think it matters. I have a JDM YS1 tranny, but it's missing that bolt. I went and got one from a USDM YS1 tranny(93 GSR to be exact) at my local Acura dealer. I got it home yesterday and it won't thread into the block. It's too big a diameter. It won't even thread through the tang for the VSS. I need this bolt immediately Hit me up people. Thanks.

 

I used a standard 8mm bolt with a 10mm bolt head on my JDM YS1. You'll find that bolt used on like the headlight brackets, fenders etc etc. You should be able to take one off your car and thread it in to make sure. If you can't find one I have extras