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**jocko** · 10-31-2013, 11:38 PM

Filler neck dia changed slightly when evap emission was added (thought it was phased in in 72 on 1/2 tons only, but not 100% certain). All 3/4 toners used the same as pre-72 dia I believe).

10-31-2013, 11:38 PM	#3
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,995	Re: NOS fuel fill seal/Grommet Filler neck dia changed slightly when evap emission was added (thought it was phased in in 72 on 1/2 tons only, but not 100% certain). All 3/4 toners used the same as pre-72 dia I believe).