Smarty Jr Vs Sr
You don't want to use a stock tranny! Good for one pedal to the metal and your done!
At a minimum you'll need a TQ and VB that will hold for a long time if you control your foot as in NO power launches! I've been quite brutal with mine with just those mods and still no slip. Only issue I had was band adjustment " It better be right" These trannies with a few mods are quite sturdy but in stock form it's easy to smoke the clutches!
At a minimum you'll need a TQ and VB that will hold for a long time if you control your foot as in NO power launches! I've been quite brutal with mine with just those mods and still no slip. Only issue I had was band adjustment " It better be right" These trannies with a few mods are quite sturdy but in stock form it's easy to smoke the clutches!
the transmisson he has is upgraded from stock. has a triple disc converter but idk what else
I have a fully billlet trans, and my new one is being built, and i'm barely pushing over 500 now to the wheels, nothing is bullet proof or will hold up to a set amount of hp/ft-lbs it is all in the luck of the draw
My dad did 417 and 850 with a smarty sr on 5 and the sub settings were set on 3 with a stock tranny. And his truck did 391 and 760 on setting 3 with no setting cranked up. Not suggesting that thats ok
If your running high hp and torque, you need the right tranny upgrade and you'll have no problems. Look at the hp and torque the trucks have that sled pull and race. I think ats is one that handles over 1500l ft lbs and has an excellent warranty. I think most of us are not going to have that kind of power, so I imagine such a tranny would last a long time. Do it right the first time and you'll have far less problems or take you your foot off the pedal.
I have the jr and tore up my 48re so upgrade your tranny first then get the jr or sr. I tow and i like the jr but i will be upgrading to the sr someday
I can't imagime why anyone would want more than the Jr. Just crazy, I guess. I have not put my Jr. higher than L2 (yet) and the truck scares me. 
It also scares small children and animals nearby with the Aero turbine muff.

It also scares small children and animals nearby with the Aero turbine muff.



