Have an 03 Cummins and ready to upgrade tranny it's an auto and is starting to have issues not sure which way to go want to spend around 2500 don't do any serious towing just want to put a tuner to it and have some fun used rebuild a lot of reading and I'm not sure what to do any info and help is appreciated

 

Im in the same boat myself. Been doing alot of research on transmissions upgrades and for what your looking for I'd say a good triple disc TC, upgrade your valve body, and a billet input shaft just to be on the safe side. All that should still keep you in your $2,500 limit.

I'm in the process of upgrading mine but its my first transmission job so im learning as I go, but I almost got it figured out. I have the exact setup which I ordered from ATS, so after I install it I'll let you know how it holds up with my smarty.

 

Just picked up a used Dave Goerend transmission and I'm installing with rebuilt or replacement motor.Heard good things will keep you posted.

 

Yes what would be the best bet for an upgrade on a budget? I have a 2003 5.9 2500 4x4
That seems to be having some issues.

 

With out knowing what upgrades you have or plan to have its hard to say.Because if you upgrade torque converter without doing valve body,clutches or having shafts checked there will always be a weak area.i'll let you know how this used Goerend that was freshened with new clutches works out.Good luck