Originally Posted by rankroddin250
well if you know what the obs turbo looks like the early 99 has the same turbo as the obs.
then I think that trucks manufactured after april 99 are the late 99's but well wait and have some one else confirm the build dates
You can not be more incorrect about the turbo! The OBS turbo was non wastegated and was a flange mount. The early99 was a "V" band mount and the early99 is wastegated.
The OBS intake plenums and the early 99 intake plenums are the same, 2".
Some of the very early99 trucks have the powerstroke badge on the front fender and the other early99, like mine, have the badges on the door. If you can fit your fist between the turbo and the cowling it is an early99. IF you can barely fit your flat hand between the turbo and the cowling you have a late99.