I put around 20,000 behind her today. She pulled it great but the rest of the truck felt the weight. I believe that I should got a dually.

 

I was looking at some duallys today and would auto hold up pulling that kind of weight 2 or 3 times a week?

 

I expect that the auto will be fine as long as you are running stock power. If you turn up the power (performance boxes etc.) you may need to upgrade the auto tranny some. You may want to do a valve body and torque converter even with stock power.

 

Only 20k, huh? I've pulled 40k before. (Stuck semi tractor and lowboy )