I have a 84 gmc k1500 305 3sp man. I need to replace the clutch its still in the truck trying to get parts first. What i need to know is if it has a 11" or 12" disk??? How can i find this out with it still in truck?? What determens disk size that comes in your truck?? Any help wood be great!!
What kind of clutch are you planning on putting in? I don't remember needing to know this info when I replaced mine about a year ago, I used a centerforce brand clutch.
