Alright, All BS aside!!! I have a 2006 2500 QC CTD w/ 3.73 gears, stock tires and the 48RE tranny. Engine is all stock and will most likely stay that way for the most part, maybe a chip for a slight Hp increase 40-50hp. The most I will tow is a 24Ft enclosed trailer with 5 sleds in it from MN to WY, total weight of loaded trailer will be around 7,000# or so. Do I need to beef up this tranny or will this new improved version be fine with what I intend to do if properly maintained. Let me know what you guys think.-Frog

 

Personally i'd get a deep tranny pan to help with cooling and watch your temps!!

Change fluid frequently if temps are over 200.

Rick

P.S. Welcom to DTR!

 

To answer the question. My 48RE seems OK fine so far. 36K total miles, almost 8K miles towing 10,000#.

I see this a lot though and wonder
Can anyone back up a heavy trailer and keep their trans temp under 200? How about stop/go traffic towing in the summer?
I've hit 265 trying to get in a tight spot. I routinely see 220 creeping home in summer shore traffic. I have a deep pan and I've changed out the fluid in the pan twice so far.