Differences between early99 and late99-03 trucks

[strokin_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 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 two aftermarket air filters that work on the early99 are the AFE stage 2 and the AIS.

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.

[hondo997.3]

sweet

[J-HO]

What is the build Date cut off for early 99?

[Dirk]

12/8(ish)/98 and before is the early. 3/99 and before is early suspension.

[J-HO]

So I have a 2/99 Engine is 99.5? Suspension is early 99?

[Dirk]

I believe that is correct, half-breed!

j.k

[J-HO]

Thanks......

[Dirk]

I may end up in the same situation you are in if the setup I'm putting together doesn't work the way I want. I already have a hodge-podge mix of early/late 7.3 and 6.0 parts.

[cmlrc]

So mine is also a build date 2/99(half bread), will the after market K&N cold air intake that I just ordered(before finding this thread) work or am I going to be disapointed?

[whitelongbed]

Is it true that early 99's had the powerstroke badges on the fenders instead of the doors?