ok so i went to order a new clucth for southbend and come to find out i dont know what input shaft size or clutch size is in my truck. i have a 01 with a sixe speed. the guy said i could have either a 13 or 12 1/4 clutch and a 1 /38 or 1 1/4 input shaft. so my question is how do i find out what size i have with take it apart first. and what clutch should i get. ones says not recommended for heavy towing and the other one is more than what i need.

 

you have the 13 inch clutch with the 1 3/8ths input shaft

 

thanks blackdiesel

 

you bet its what i do