I had a 03 access cab and am looking for a replacment in a double cab. Question when did the 5 speed trannies come out? The 4.7 got its HP boost in 04 I think.
Its the old engine with the 4spd. VVTI didnt come out till 05I am looking at a 04 and the engine is badged as a iforce and the tailgate has the same badge on it. The truck shows a manufacture date of 11/03 on the door. Still not sure on the number of gears in the tranny, but looks like the motors were upgraded in 04 to me.
THE 5 SPEED MAKES THE BIG DIFFERENCE WHEN TOWING. NOT SO MUCH THE HSPWR WHICH IS ONLY 283. TORQUE IS THE IMPORTANT #.THE TUNDRA WITH THE 4 SPD DOESNT PULL WELL BETWEEN FIRST AND SECOND.The 5-spd trannies and 4.7 HP boost didn't come till 2005...the 05-06's are the one's with the 5-speed and the VVT-i.