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Old 04-04-2020, 01:55 PM   #1146
j_cst_10
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Join Date: Nov 2008
Location: Cleveland, OH
Posts: 586
Re: What did you do to your truck today.The 3rd chapter

No photos sorry. It was somewhat an ordeal.

The boost gauge was relatively simple, just removed the plate on the back of the cluster and cut it in half. Cut a clearance hole in the clear plastic faceplate and mounted the gauge using the auto meter bracket and thumb screws.

The egt was more involved going in place of the factory tach. I cut a 2” hole in the clear gauge faceplate and hand filed it to fit snugly. This is how the gauge is held in place. Cut another tight fitting hole in the stamped steel panel that has the factory gauges. Then used a sheet metal uni-bit to drill clearance holes in the back of the cluster to clear the light terminal and egt probe terminals. Lastly used a razor blade to cut through the plastic membrane that connects the electrical power to the lights and gauges. Also cut the studs off the auto meter gauge.

It wasn’t too bad but there were a handful of roadblocks that i didn’t foresee but was able to work through them.
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1972 Cheyenne Super 20 Custom Camper 12 Valve Cummins/5spd manual
1972 Cheyenne Super Short Bed 557 Med Olive DK olive
1970 K5 Blazer Dark Gold

1966 Coronet 440 35k mile survivor
1991 Suburban 2500 454/4L80E 2wd
1985 Monte Carlo SS 383 Sbc, t-56 magnum 6spd and Ford 9"
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