1999 Fuel Filler neck and hose finding issues.....does wheelbase really matter? help?

[nsmar4211]

When the dealer says "just get one and try it", that's never a good sign.

Wanting to change my fuel filler neck/tube due to issues when filling the tank and getting codes. Already done this on a 97, figured no biggie to get parts for my 99...apparently I was wrong.

Truck is a 1999 , styleside, extended cab, flex fuel, 126" wheelbase.

Everything I (and the dealer even) can find says for 118" wheelbase. The OEM was a one piece unit and discontinued so I have to get the hose and the filler neck separately.

Dealer *thinks* the Spectra FNH015 is the right hose. Then narrowed it down to either the Precision Fuel Tank Filler Neck FF551 (O reilly) or the Spectra Premium FN551 (rock auto) as possibly the actual neck. But I would rather not guess if someone knows off hand what's right so....anyone have an idea?

 

[RonD]

1999 should have the two hose configuration: https://i.ebayimg.com/images/g/NwQAAOSw5w1lBtJx/s-l1200.webp
Smaller vent hose, larger filler hose

1997 had the one hose: https://i.ebayimg.com/images/g/daMAAOSw0dtkYcrL/s-l1200.jpg
Larger vent hose with smaller filler hose inside it

For the 1998 and up if you are just replacing the rubber hose part of filler then get the longer wheel base and cut it down as needed
You should do vent hose as well

Differences are 17gal tank(regular cab), vs 20gal tank(extended cab)
Style side vs flare side beds