ok i have a hf tranny on a d16 motor and i just bought an si tranny. will it just bolt right up? the reason why i ask is i heard from somewhere something like the si clutch is bigger or something so i won't be able to use the hf clutch.

thanks for any help

 

What year was the hf tranny? If it was an 88 then the new Si tranny must be an 88 to use the same clutch/flywheel. If the hf tranny is 89-91 and so is the Si one then it will swap just fine.