early 99 date and power questions

[stuntlife21]

ok so everything points to my truck being an early 99 but the date is 12/98 some websites say that early 99 ends at 11/98. and without changing the turbo how much power could i expect to be a ble to make and since im sure its not much what would be the best way to run 13's? my truck is a 4x4 short bed extended cab and the edge i have now is goin 4 a tw 6 position

[smitty16s]

injectors, big oil, intake, exhaust, fuel, transmission upgrade, turbo. and more will chime in.

[stuntlife21]

i got all that i was just looking 4 more specific

[Ron's power stroke]

Originally Posted by stuntlife21

i got all that i was just looking 4 more specific

as far as under the hood goes..any thing built before 12/7/98 is a early 99

Early 99 has a wicked wheel in it from the factory.

The early99 has 120cc(AB code) injectors and the late99-03 has 140cc(AD code) injectors.

The early99 has 2" intake runners. The late99-03 has 3" intake runners.

The early99 has a 15* swash plate HPOP. The late99-03 has a 17* swash plate HPOP.

The early 99 has a 110v IDM..the 99.5-03 have a 120v IDM

The early99 has one glow plug relay. The late99-03 has one glow plug relay and one air intake heater relay side by side. Both relays are on the passenger side valve cover toward the front of the truck.

The early99 has a totally different air filter that is not inter changeable with the late99-03. But you can put the late99 air cleaner assembly in the early99 truck. The only three aftermarket air filters that work on the early99 are the AFE stage 2, the AIS and the KWIKK 6637.

The early99 track rod has smaller mounting bolts than the late99-03.

The early99 has shallower rotors than the late99-03.

The early99 has shorter hub-bearings than the late99-03.

The early99 front axle U bolts are square where they go over the spring pack. The late99 U bolts are round.

The early99 has a different pitman arm than the late99-03.

The early99 does not have the AIH like the late99-03.

The early99 does not have the automatic transmission fluid cooler in the radiator.

The early99 has no indicator light showing that "cruise" is on. Late99-03 has a cruise light that will come on when you set the cruise control. The early99 truck has the light in the dash already. A newer PCM(Yes it will plug in and will run better too) must be used to make the cruise light illuminate. It is a green light on the right side edge, half way up.

in this pic the painted spider is the 99.5..the un painted is the early 99..notice where the driver side IC pipe goes..the leg standing up in the pic gets smaller as it goes into the belly of the spider on the early bird..the 99.5 stays a full 3 inches as it enters...

[cbremodel]

Rons powerstroke , Thank you for an exellant post with awesome info. This answered alot of questions for me. I thought I had an 99.5, but not. I'll have to edit my sig. Thanks Chris.
P.S. I think this should be saved in the tech files

[REDPOWERSMOKER]

take a picture of under the hood and we can tell you for sure

[superduty4x4]

To add to what Ron posted, the turbo on the early bird is also different. The late style turbos have "ribs" that run from the intake inlet to the main part of the compressor housing, the early style turbo does not have these. An even easier test is the absence of the AIH- if you look at Ron's photo, you can see the AIH (gold part, just above center toward the left edge of the photo)- the early's don't have this part.

[stuntlife21]

early 99 it is thanks guys i was sure but now i'm 100% now lets talk about goin fast

[cvdenson]

Hey Ron,
Not sure about the early '99s NOT running the ATF cooler in the radiator. I don't know if it's because mine is a 6sp or not, but my ATF cooler lines run directly into the radiator.

[Ryan Rønning]

I am pretty sure that Rons right!