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**1972BackInBlackC10** · 09-02-2012, 04:45 PM

i know this is an old thread but my 1980 gmc has the same timing cover with the tab

09-02-2012, 04:45 PM	#10
1972BackInBlackC10 Senior Member Join Date: Jan 2012 Location: Estevan, Saskatchewan Posts: 1,026	Re: 85 timing tab questions? i know this is an old thread but my 1980 gmc has the same timing cover with the tab