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**crossy** · 10-29-2007, 04:01 PM

The boneyard find is 1980 up. real good score if it works or not, but since it has the pigtail wires just hook it up and see if it works then check against a REAL tach because those things commonly worked,but were way off as the electronic pieces aged. if it's just off by 100-300 from a good, high dollar tach that's normal. crossy

10-29-2007, 04:01 PM	#17
crossy Oh,you can't buy that new Join Date: Apr 2000 Location: Pennsville,N.J. 08070, USA Posts: 2,042	Re: Look what I found The boneyard find is 1980 up. real good score if it works or not, but since it has the pigtail wires just hook it up and see if it works then check against a REAL tach because those things commonly worked,but were way off as the electronic pieces aged. if it's just off by 100-300 from a good, high dollar tach that's normal. crossy __________________ "been there, done that, ruined the T-shirt". 2007 LBZ GMC Sierra, ECSB 2006 LM7 RCSB Silverado 98 Vortec project. 94,3500,6.5L 4L80 81 SWB GMC POS finally gone 73 Pinto, stock, w/CragarSS's-eww 84,C10 SWB-Yella,stock 86 K10 SWB-Red, hopped up 305,4/S LOTS of Cummins trucks.