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845 Posts
The 3600 is going to be rough for low speed backing, I've read some complaints about chatter. When I called south bend they said use the 3250 for pulling my trailer over the 3500 for better backing without harsh engagement. I'm going to get mine ordered next week. I put in a SMF clutch from Napa (precision) and it chatters terribly. Its been replaced once already under warranty too.