Trans am Instrument cluster changes
Thread Starter
Joined: Jul 2003
Posts: 108
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From: Trinity, AL
Car: 1987 trans am, 1988 Formula
Engine: 305 LG4, 305 LB9 TPI
Transmission: 700R4 in both
Trans am Instrument cluster changes
Could somebody post a pic of the difference in clusters from year to year. Is an 85 different from an 87?
Re: Trans am Instrument cluster changes
Fairly big difference. The 1985 Trans Am, if analog, has the mechanically driven speedo while the 1986+ Trans Ams have an electronic driven speedo. There's also a slight difference between the faceplate and design.
Supreme Member
Joined: Jan 2009
Posts: 2,314
Likes: 115
From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: Trans am Instrument cluster changes
'85 cluster is quite different from '86-later:85 is made by AC delco,has reflected orange lighting,and a subtle "grid"pattern on the gauge faces-otherwise basicly the same as 84 and 82-83.'86-up clusters(besides some '86 base clusters still AC delco),are made by Nippondenso with lighted pointers and "through the dial"red-orange illumination.
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