Just had a 48 swap done on one truck and have another stock '13 with a 68. If you aren't pushing big power the 68 can hold it's own pretty well.
__________________
'11 2500 CCSB |s476 T6|S&S 12mm|S&S 150%|WPD 48RE|Freedom Racing Engines
'13 3500 MCSB |Stainless s465||S&S 10mm|Wilson Patterson 68RFE
|