i'm looking for a clutch for a 6.7l i have all deletes and a smarty. i don't know what to but a single or a double dics. i use the truck as a daily driver and pull a 25ft goose neck trailer to haul my tractors with i do know sled pulling and drag racing. but i do turn the smarty on high some times. i was looking at a southbends dd but people say they are jumpy when taking off.

 

 

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