fuel tank help
Thread Starter
Junior Member
Joined: Feb 2014
Posts: 1
Likes: 0
From: Vero Beach, Florida
Car: 1984 z28
Engine: 305
Axle/Gears: 3.73
fuel tank help
Does anyone know if a 4th gen tank will fit on an '84 z28 with little to no modification? 4th gen tanks are all I can find at the junk yard
Joined: Jan 2013
Posts: 328
Likes: 7
From: Gresham Oregon
Car: 1985 Z28 & 1997 Z28 SS SLP
Engine: Sbc 305 TPI & LT1
Transmission: 700r4 and A4
Axle/Gears: 9 bolt Posi 323 & Posi 323
Re: fuel tank help
should fit fine, the later 98-02 may have been plastic, but not sure...
Member
iTrader: (1)
Joined: May 2012
Posts: 358
Likes: 0
From: Cave City Ar.
Car: 85 T/A
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: fuel tank help
Your fuel guage won't work. The 4th gen uses a different sending unit. There are threads on here that talk about this problem.
Senior Member
Joined: Apr 2007
Posts: 668
Likes: 0
From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
98+ has a different sending unit resistance. 90-270 ohm versus the 3rd gen 0-90 ohm reading. You can use the OEM 97 grand Prix sending unit to fix that on later models but their are also plumbing and emissions differences. Pretty sure the 93-97 tank fits other then a slightly longer filler neck. Keep reading. You'll find out all the stuff you need.
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