Everything that I haven‘t changed myself is stock. I know the newer trucks come with different rear axles but I don‘t know about a 1994. I‘m looking at Positrac and I have to know what gearing I have.
Chevy V-6 torquers coupled with auto trans. are netorious for shallow rear gear drives. Embarassing city traffic involves old tech 3'rd series housings maxed out with 373 gears with this tranny. Precision driveshaft engineering provides piece of mind when traveling 130+MPH. Wide low profile rubber along with brake(radical trailering spec) alterations begin to give you an inkling of real-world performance. 572ci's of aluminum engine pervailence will have you wearing crash gear unimagined!
It's called coolant. You go to the auto parts store and tell them you need coolant for a 94 Cheyenne 350. Some coolants come concentrated and should be mixed with 50% water. Others are pre-mixed. The car parts store can tell you how much you need. (Probably about 3 gallons for the whole circuit.) **You will need to purge air bubbles from the system after you fill it, repeat until there are no more bubbles.
There is a tag in the glove box with a code on it write it down and call your local dealer they will tell you all you need to know about the gears.
