Well my clutch pedal is about all the way to the top and I mean all the way up, I looked at my clutch disc and its pretty thin, plus I've got bad chatter in it as well, truck has a 158,750 on it, I'm looking at a South-Bend clutch, I talked to Peter there and he said that either the MU-0090 Rally or the MU-0090 Con. O will be sufficient even though they are 12 1/4" instead of being 13" like the factory, but they have a small header that says "not for heavy towing", I would like to pull a couple of my trailers, and the heavy one is about 12,500 lbs, they have a MU 13-1. 25 Con. O which is a 13" clutch maybe I should get this one instead, anyone with any experience with any of these clutches, and any thoughts, thanks 
