I recently acquired a 1991 D350 dually. The body's not bad except rockers and tailgate. What is one of the first things I can do performance wise w/o breaking the bank?

 

Hmm well in order to safely get free performance from turning up the fuel, you need to get a pyro gauge/EGT. If you don't want to buy that , you may end up with some melted pistons.

 

Thanks for the info. Should I also consider installing an intercooler?

 

An intercooler is not necessary above, around 325HP things will start to get toasty. or if you going to be towing a real heavy load with minimal pump tweaks.

At the top of the forum there's a sticky callled "How do I...?" Look here first! A.K.A. "The Sticky"

look through that and you'll find many sections with many articles on everything from making your truck more comfy all the way to the performance section.

you should also add to your signature what transmission is in your truck. that helps with answering your quesions.

 

I know this is going to sound stupid, but how do I identify the trans.? I know that it is an automatic w/ R,D,2,1. Thanks

 

Well since it's a 1991 NON I/C, it has the three speed 727 transmission with a Dana 70 3.07 rear end.

http://www.allpar.com/mopar/torqueflite.html

 

Thanks Jeff. This info will be very useful.

 

If it is a non i/c with auto you have a non o/d mopar 727 trans.

 

727 3 speed trans