Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Mdapperdan* · 03-12-2003, 12:46 AM

Can someone tell me why do some fleetside beds have a round gas filler door and some have a square filler door?
Thanks

J-Spec C10 · 03-12-2003, 01:40 AM

That just depends on the year I think. Not 100% sure though.

ElGracho · 03-12-2003, 01:52 AM

Yep, they changed in 79 to having gas filler doors. Another interesting note. At some point (I think 81) the single tank boxes moved the gas filler from the passenger side (73-80) to the driver's side (81-87). By piecing together two single tank boxes you could have a box with no filler door with no welding!!! (You might have to move some of the tailgate hinge and latch stuff though)

**Captkaos** · 03-12-2003, 02:47 PM

1979 was the first year for the filler door, 1980 was the last year for the tank to be standard on the passenger side, 1981 it moved to the drivers.

This ONLY applies to pickups, and only single tanks:
73-78 had exposed filler cap on passengers side
79-80 had a filler door on the passenger side
81-98 had filler door on drivers side.

Burb/Blazer had filler doors starting in 1976, from memory.

03-12-2003, 12:46 AM	#1
Mdapperdan Account Suspended Join Date: Jan 2003 Location: Santa Rosa Ca. /Prescott Az. Posts: 169	Question Can someone tell me why do some fleetside beds have a round gas filler door and some have a square filler door? Thanks

03-12-2003, 01:40 AM	#2
J-Spec C10 Whats this wire for?.... Join Date: Dec 2002 Location: Barrie, Ontario, CANADA Posts: 378	That just depends on the year I think. Not 100% sure though. __________________ Kyle CANADIAN CONNECTION '82 C10 Resto-Custom--> * 2 1/4" manifold back dual exhaust with Hooker Aerochambers & High Flow Cats Taylor Ignition Wires Centerline 15" Telstars with 32"x10" mudders

03-12-2003, 01:52 AM	#3
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Yep, they changed in 79 to having gas filler doors. Another interesting note. At some point (I think 81) the single tank boxes moved the gas filler from the passenger side (73-80) to the driver's side (81-87). By piecing together two single tank boxes you could have a box with no filler door with no welding!!! (You might have to move some of the tailgate hinge and latch stuff though) __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

03-12-2003, 02:47 PM	#4
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	1979 was the first year for the filler door, 1980 was the last year for the tank to be standard on the passenger side, 1981 it moved to the drivers. This ONLY applies to pickups, and only single tanks: 73-78 had exposed filler cap on passengers side 79-80 had a filler door on the passenger side 81-98 had filler door on drivers side. Burb/Blazer had filler doors starting in 1976, from memory. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com



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