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Old 09-05-2012, 05:46 PM   #6
olblue81
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Join Date: Jul 2005
Location: Saskatchewan
Posts: 189
Re: Canadian cluster

I believe the metric speedo showed up in '77 and the metric oil pressure and temp showed up in '82. My '81 has the metric speedo and standard oil pressure and temp.
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Stu-

1981 GMC Sierra Classic LWB
355- original 2 bolt block, 10.2:1, vortec heads, Comp XE268 cam, built by self in 1992
700R4-2000 stall with lockup, shift kit, Corvette servo
3.07 open diff- I need a 3.73 posi!

2nd owner since 1986 - 388,000 km and counting. 100k by the first owner and the rest by me.
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